Pale-legged Leaf Warbler & the Shanghai Big 5

The illustration above shows Shanghai’s Big 5 Leaf Warblers: Pale-legged Leaf Warbler (1), Arctic Warbler (2), Eastern Crowned Warbler (3), Pallas’s Leaf Warbler (4), and Yellow-browed Warbler (5). In this post, I tell you how to separate Pale-legged and its lookalike Sakhalin Leaf Warbler from the others.

Recently at Cape Nanhui, the birding hotspot in Pudong, my object of observation was Pale-legged Leaf Warbler, one of the Big 5 Leaf Warblers in Shanghai. In both spring and autumn, Phylloscopus tenellipes passes through Earth’s greatest city in considerable numbers. A lookalike species, Sakhalin Leaf Warbler P. borealoides, also has been noted in Shanghai.

In this post, I shall outline the difficulty of distinguishing Pale-legged Leaf Warbler from Sakhalin Leaf Warbler on anything but call and song, and I will show you some of the traits of “Pale-Sak” that set this species pair apart from other leaf warblers.

SONG CAN SAFELY SEPARATE PALE-LEGGED FROM SAKHALIN

Per's PDF
‘Almost identical’: that’s the judgment of leaf-warbler expert Per Alström on Pale-legged and Sakhalin Leaf Warbler (regarding their plumage and bare parts). The page shown here is No. 11 of a 40-page PDF on leaf warblers in China by Professor Alström. The PDF is a handy introduction to a difficult group and can be downloaded here (13 MB).

Pale-legged Leaf Warbler is safely separable from Sakhalin Leaf Warbler only by song and call. Every other trait of each can occur in the other. Numerous authorities confirm this. Swedish ornithologist Per Alström calls the two species “almost identical” and “virtually indistinguishable except by song” (Alström 2012). Mark Brazil says field separation of Pale-Sak is “uncertain,” and he warns readers to “beware light conditions” (2009). Clement writes that Pale-legged and Sakhalin are “very similar” and claims, dubiously, that the latter is distinguishable from the former “mainly by greener upperparts and lack of wingbars” (2006). Clements goes on to describe juvenile Pale-legged as being “more greenish on upperparts,” which begs the question of whether the greenish Pale-Sak one is observing is an adult Sakhalin or a juvenile Pale-legged. Moreover, a quick look at Oriental Bird Images shows many Sakhalin Leaf Warbler with wing bars.

Thankfully for us birders, the songs of the two species are distinctive and provide the basis for a safe ID. The song of Pale-legged, occasionally heard in Shanghai in May, is a cricket-like trill, that of Sakhalin a high-pitched, three-note whistle.

Pale-legged Leaf Warbler, Boli County, Heilongjiang, 10 June 2016 (02:00, 6.4 MB)

Sakhalin Leaf Warbler, Zhongshan Park, Shanghai, 5 May 2016 (00:36; 2.2 MB)

One day last May, I heard Pale-legged and Sakhalin singing together in Zhongshan Park—proof that Sakhalin passes through Shanghai. Usually, however, birders here are forced to perform the less than satisfying task of assigning the individuals they see to the category “Pale-legged/Sakhalin Leaf Warbler.”

Bottom line: In Shanghai, any Pale-Sak one sees is probably Pale-legged Leaf Warbler, the continental breeder, and not Sakhalin Leaf Warbler, the breeder from the eponymous Russian island plus Hokkaido and Honshu; but to claim certainty about any non-singing individual is the taxonomical version of Russian roulette.

DISTINGUISHING PALE-SAK FROM OTHER LEAF WARBLERS

The Pale-Sak species pair is readily distinguishable from other leaf warblers, in particular the other four members of Shanghai’s Big 5: Pallas’s Leaf Warbler Phylloscopus proregulus, Yellow-browed Warbler P. inornatus, Arctic Warbler P. borealis, and Eastern Crowned Warbler P. coronatus.

Here are a few principles:

Pale-legged Leaf Warbler and Sakhalin Leaf Warbler are plain, mid-sized to large leaf warblers without even the hint of a coronal stripe.

Pale-legged/Sakhalin
Pale-legged/Sakhalin Leaf Warbler shows no trace of a crown stripe (Panel 1). Yellow-browed Warbler (2) usually shows a faint stripe. In Eastern Crowned Warbler (3) and Pallas’s Leaf Warbler (4), the stripe is prominent. (Craig Brelsford)

Pale-legged/Sakhalin Leaf Warbler has distinctive pink legs and a short bill with a black smudge on the lower mandible, which is pink at the base and tip.

warblers
Like Pale-legged/Sakhalin Leaf Warbler, species in the Arctic Warbler Complex lack a crown stripe and usually show one or two wing bars. One way to distinguish birds from the two groups is by the color of the legs and bill. The legs (Panel 1) of Pale-legged/Sakhalin Leaf Warbler are distinctively pale and pink, in contrast to the brownish-yellow legs of the Arctic-type Warbler in 2. Likewise, the slightly shorter bill of Pale-legged/Sakhalin (3) shows a blackish upper mandible and pinkish lower mandible and cutting edge. The black smudge on the lower mandible does not reach the tip. The bill of Arctic-type Warbler (4) follows a similar pattern, but with brownish-yellow replacing pink. (Craig Brelsford)

Even on a fast-moving Pale-Sak in poor light, the pink of the bill and especially of the legs is readily seen. The distinctive pale color of these bare parts is a handy tool for distinguishing Pale-Sak from birds in the Arctic Warbler Complex, which like Pale-Sak lack a crown stripe and usually show one or two wing bars. (The Arctic Warbler Complex consists of Arctic Warbler Phylloscopus borealis, Kamchatka Leaf Warbler P. examinandus, and Japanese Leaf Warbler P. xanthodryas. In Shanghai, Arctic Warbler is the most common of the three, migrating through Shanghai every spring and autumn.) The pink coloration also distinguishes Pale-Sak from Dusky Warbler P. fuscatus, an uncommon migrant and winter visitor in Shanghai, and the scarce passage migrant Two-barred Warbler P. plumbeitarsus.

Pale-legged/Sakhalin Leaf Warbler constantly pumps its tail.

tail
The tail of Pale-legged/Sakhalin Leaf Warbler pumps independently of other muscular actions. In panels 1-2, note that the tail pumps even as the warbler devours an insect. Panels 3-4 show the warbler motionless except for the up-and-down movement of the tail. Photos here and immediately below are of a single individual and were taken in September at Microforest 4 (30.953225, 121.959083), Cape Nanhui. (Craig Brelsford)

The tail-pumping of Pale-legged/Sakhalin is one of the most distinctive behavioral traits of the species pair. The steady movement usually occurs independently of other muscular actions and is slow enough for the eye to see. The tail-flicking of Arctic Warbler, by contrast, is more spasmodic and is often accompanied by wing-flicking.

Pale-legged/Sakhalin Leaf Warbler is often found on the lower, thicker branches of trees.

Pale-legged/Sakhalin Leaf Warbler
Pale-legged/Sakhalin Leaf Warbler on thick branch. More so than other leaf warblers, Pale-Sak is likely to be seen on leafless, thick branches low on the tree. (Craig Brelsford)

With its ability to forage along thick branches and not just glean from the underside of leaves, Pale-legged/Sakhalin can remind one of a nuthatch. Other species such as Arctic Warbler use the lower branches, but sustained observation shows Pale-Sak more often in those areas. Note: In May and June 2016, I studied Pale-legged Leaf Warbler on its breeding grounds in Heilongjiang. There, amid trees older and taller than one usually sees in Shanghai, I most often noted the species far above my head, in the mid-canopy.

A NOTE ON CALLS

Except for the mainly silent migrant Eastern Crowned Warbler, Shanghai’s Big 5 Leaf Warblers all call in both spring and autumn. The calls are distinctive. The metallic “tink” of Pale-Sak contrasts markedly with the “tzit” of Arctic Warbler, the “dweet” of Pallas’s Leaf Warbler, and the “sweet” of Yellow-browed Warbler.

Sakhalin Leaf Warbler, Nanhui, Shanghai, 8 May 2016 (00:15; 1.4 MB)

Arctic Warbler, Yangkou, Rudong, Jiangsu, 16 May 2015 (00:09; 1.9 MB)

Pallas’s Leaf Warbler, Yangkou, Rudong, Jiangsu, 9 May 2014 (00:05; 1.6 MB)

Yellow-browed Warbler, Lesser Yangshan Island, Zhejiang, 24 April 2014 (00:07; 1.7 MB)

Note that, according to Brazil, the call of Pale-Sak only can separate the pair from other species. It cannot be used to separate Pale-legged from Sakhalin. The tink of Pale-legged, Brazil writes, “is probably indistinguishable from Sakhalin Leaf” (2).

UPDATE

Editor’s note: This post caught the attention of Philip D. Round, a professor at Mahidol University in Bangkok and an expert on leaf warblers. In an e-mail to me, Round writes that as discoveries are made and papers published, separating Pale-legged Leaf Warbler from Sakhalin Leaf Warbler on call may become more widespread. Separation on morphology, by contrast, will be much more difficult, though it may eventually turn out to be possible in the hand.

The following paragraphs are from Round’s e-mail to me:

“I enclose a paper that details the first records of both Kamchatka Leaf Warbler and Sakhalin Leaf Warbler from Thailand. [Editor’s note: the paper, “Addition of Kamchatka Leaf Warbler Phylloscopus examinandus and Sakhalin Leaf Warbler P. borealoides to Thailand’s Avifauna,” is available for download through shanghaibirding.com (708 KB).] This has been rather overtaken by events, as we have now caught into the hundreds of Sakhalin LW, mostly on spring passage, and quite a few more Kamchatka. I have an undergraduate student who has carried out DNA assay on about ten percent of all the Pale-legged and Sakhalin LW caught. For many of these we have also recorded call notes on release. When she comes back from overseas study in January 2017 I hope we’ll get a paper out which publishes details of call-note frequency and DNA results for this large sample, which should show the correlation between species and call-note frequency clearly. (Actually this is moderately and anecdotally well-known already. I think either Frank Lambert or Jonathan Martinez was the first to draw my attention to the difference, and it is mentioned by Yap et al. in BirdingASIA with reference to an overwintering Singapore bird.) [Note: Round is referring to Yap, Francis et al., “First wintering record of the Sakhalin Leaf Warbler Phylloscopus borealoides in South-East Asia, with notes on vocalisations,” BirdingASIA 21 (2014): 76–81.]

“I am a bit less sanguine on finding means (other than by call frequency or song) to separate all birds. Even in the hand, it is by no means clear. We can pick out long-winged male Sakhalin, and short-winged female Pale-legged. But there is more overlap than previously realized, and most are in between. There don’t appear to be any 100% consistent wing-formula differences, and plumage and bare-part features, while somewhat indicative, are again less than 100% reliable—especially under field conditions. But probably we are missing something. The next thing to do is to apply PCA or some other multivariate analysis to figure out reliable means of separation of birds in the hand from our large sample, and also to use the information we have to figure out differences in the timing of passage of the two spp.”

BIBLIOGRAPHY

Alström, P. (2012). Identification of Phylloscopus & Seicercus Warblers in China. Notes from presentation given to Beijing Birdwatching Society in November 2012. PDF downloadable here (13 MB). Click here for a 5 MB zip archive containing all 40 pages of the report in JPEG form. Those pages can be synced to your smartphone like photographs and consulted in the field. (Accessed: 12 September 2019)

Brazil, M. (2009). Birds of East Asia. Princeton, New Jersey: Princeton University Press.

Clement, P. (2006). Family Sylviidae (Old World Warblers). Pp. 663-4 (Pale-legged Leaf Warbler, Sakhalin Leaf Warbler) in del Hoyo, J., Elliott, A. & Christie, D.A. eds. (2006). Handbook of the Birds of the World. Vol. 11. Old World Flycatchers to Old World Warblers. Lynx Edicions, Barcelona, Spain.

Be notified every time we post. Send an
email with “Subscribe” as the subject to
info@shanghaibirding.com

Donate to Shanghai Birding!




Meet Kai Pflug, Nanhui’s Mr. Clean

Let’s hear it for Kai Pflug! The Shanghai-based German birder has taken it upon himself to clean up Cape Nanhui, Shanghai’s best-known birding area. On Sun. 11 Sept. 2016, Kai hauled out two bagfuls of trash from Nanhui’s Microforest 2 (30.926138, 121.970795), and I’m proud to say my wife Elaine Du helped Kai out on Microforest 1. Kai has long been cleaning the microforests, and his work has had a big effect on those precious migrant traps.

In his car, Kai keeps six pairs of tongs as well as a roll of plastic bags. Kai told me he uses tongs “to show others that it’s possible to clean up trash without getting your hands dirty!” He keeps six pairs so that others can join him in his quest to keep the microforests clean.

Photographers await Fairy Pitta on Sunday in Microforest 2.
Photographers await Fairy Pitta in Microforest 2. (Craig Brelsford)

As if his work on the trash weren’t enough, Kai further burnished his eco-credentials Sunday morning at Microforest 2. There, about 30 photographers have set up camp to photograph Fairy Pitta, a species that has been present in the tiny wood since early September. Someone had speared mealworms onto a metal hook. The hook could rip the mouth of a hungry pitta. Kai spied the hook, marched into the setup, and tore it down. In his good Chinese, the product of 12 years living in this country, Kai explained to the surprised photographers, “This isn’t good! It can kill birds.”

A Fairy Pitta leaps toward a food item at the photography setup in Microforest 2, 11 Sept. 2016. Photo by Craig Brelsford.
A Fairy Pitta leaps toward a food item at the photography setup in Microforest 2, 11 Sept. 2016. (Craig Brelsford)

Kai’s actions Sunday were the backdrop to an eventful birding day. Partnering yet again with veteran British birder Michael Grunwell, Elaine and I noted 75 species. We birded the well-known coastal sites at Nanhui as well as the sod farm south of Pudong Airport. We had our first migrant bunting of the season, endangered Yellow-breasted Bunting; Himalayan Swiftlet in the skies above the Magic Parking Lot (30.882784, 121.972782); and Pechora Pipit in the wet agricultural land north of Lúcháo (芦潮; 30.851111, 121.848528).

Other goodies were Lesser Coucal catching a frog, Asian Stubtail joining Fairy Pitta at the photography setup, and season’s first Yellow-browed Warbler, Siberian Thrush, and Blue-and-white Flycatcher. We had Green Sandpiper, Grey-tailed Tattler, and a migrating flock of Red Turtle Dove near the Pechoras and Eurasian Wryneck in the recently planted trees on the inner base of the sea wall. The microforests yielded a second Fairy Pitta, 8 Black-naped Oriole, 7 Japanese Paradise Flycatcher, and a good count of 12 Siberian Blue Robin.

This Black-naped Oriole, one of eight we found Sunday at Nanhui, was in full migration mode and very hungry. A forest dweller, Black-naped Oriole is usually among the shyest of birds, but this juvenile was foraging in the open and allowed us to approach while it searched frantically for food. It even sampled a flower petal!
This Black-naped Oriole, one of eight we found Sunday at Nanhui, was in full migration mode and very hungry. A forest dweller, Black-naped Oriole is usually among the shyest of birds, but this juvenile was foraging in the open and allowed us to approach while it searched frantically for food. It even sampled a flower petal! (Craig Brelsford)

Our trip to the sod farm was cut short by rain. Before the shower we noted ca. 800 Oriental Pratincole. Obviously this grassy area is important to the species, which breeds in the Shanghai region and which with the development of Pudong has seen a dramatic shrinkage of its territory.

On Mon. 5 Sept. Elaine and I did our first urban birding of the season at Shanghai’s Century Park. Among the 24 species we noted were passage migrants Oriental Dollarbird, Asian Brown Flycatcher, and Grey-streaked Flycatcher.

PHOTOS

Siberian Blue Robin, among the 12 we found Sunday in the microforests of Nanhui. In Nanhui one usually views these secretive birds from a distance and obscured by branches and leaves, as shown in the two left-hand panels. On their breeding grounds in Heilongjiang, <a href="https://www.shanghaibirding.com/explorations/boli-may-june-2016/" target="_blank">where this past spring Elaine and I studied Siberian Blue Robin and other northeast China breeders</a>, one is lucky to get even this good a view.
Siberian Blue Robin, among the 12 we found Sun. 11 Sept. 2016 in the microforests of Cape Nanhui. At Nanhui one usually views these secretive birds from a distance and obscured by branches and leaves, as shown in the two left-hand panels. On their breeding grounds in Heilongjiang, where this past spring Elaine and I studied Siberian Blue Robin and other northeast China breeders, one is lucky to get even this good a view. (Craig Brelsford)
Lesser Coucal with prey, Nanhui, 11 Sept. 2016.
Lesser Coucal with prey. (Craig Brelsford)

Featured image: Kai Pflug picks up litter at Microforest 1, Cape Nanhui, 11 Sept. 2016. (Craig Brelsford)

Studying Northeast China Woodland Birds in Elaine’s Hometown

From 26 May 2016 to last Sunday (12 June), Elaine Du and I were in her home village of Dawucun in Boli County, Heilongjiang. We birded 15 of those days, mainly around Xidaquan National Forest, and noted 84 species. Our bird of the trip was Band-bellied Crake, and we found breeding Eurasian Eagle-Owl. We noted in full breeding mode many birds that we had previously known only as passage migrants in Shanghai; we enjoyed for the first time the songs of Siberian Blue Robin, Blue-and-white Flycatcher, White-throated Rock Thrush, Siberian Thrush, and many other species.

In this post, you will get an introduction to Boli and eastern Heilongjiang, you will discover the birds we met up there at the height of the breeding season, you will learn about the birds we missed, and you will find out how Elaine and I combine birding with family. There are as well 31 of my sound-recordings of Boli birds and plenty of photos.

For the full report on our spring 2016 trip, including daily lists and a master list detailing where and when we encountered each species, click here. For the report on Elaine’s and my first two trips together to her hometown, click here.

Why Should Birders Care about Boli?

Silver Birch Grove (白桦林), one of the attractions of Xidaquan National Forest in Boli County, Heilongjiang.
Silver Birch Grove (白桦林), one of the attractions of Xidaquan National Forest in Boli County, Heilongjiang.

Boli County is a good place to study the woodland birds of the eastern Palearctic. Its forests, remnants of the ancient northern temperate forest that once stretched unbroken across the region, hold northern species absent further south in China. In springtime, Boli County is the breeding home of birds that in the more densely populated southern regions of China appear only as passage migrants or winter visitors.

Background

Boli County lies within the Amur Basin of Northeast China. It is part of Qitaihe Prefecture in eastern Heilongjiang, not far from the Sino-Russian border. Map courtesy Wikipedia.
Boli County lies within the Amur Basin of Northeast China. It is part of Qitaihe Prefecture in eastern Heilongjiang, not far from the Sino-Russian border. Map courtesy Wikipedia.

In January 2015 Elaine and I were married in Dawucun, where Elaine was born. During breaks in the festivities, I explored the frozen country. Expecting to find only magpies and sparrows, I was pleasantly surprised to find forested hills near the village and good birds such as Rough-legged Buzzard. I vowed to return and bird the area thoroughly.

In August and September 2015, Elaine and I fulfilled that goal. During a 32-day visit to her hometown, Elaine and I discovered Xidaquan National Forest, a 9,400-hectare reserve in the Laoye Mountains. Xidaquan preserves a remnant of the northern temperate forest that once covered the region. We were thoroughly impressed and made plans to bird the area yet again, this time during breeding season. The trip described here is the realization of that plan.

For Elaine and me, birding trips to Boli are special because they combine Northeast China birding with family. Elaine is never happier than when she is with her parents and two elder sisters, and I not only like her family but also appreciate the opportunity they give me to learn about Chinese culture.

Elaine Du (L) with parents and elder sisters. Dawucun, 12 June 2016.
Elaine Du (L) with parents and elder sisters. Dawucun, 12 June 2016.

Like many residents of the Northeast, Elaine is descended from migrants who chuǎng Guāndōng (闯关东)–“leapt” north, mainly from Hebei and Shandong, to farm areas of Guandong (Manchuria) formerly closed to Han Chinese settlement. In Elaine’s case, the settlers were her parents, who left Shandong in the 1970s.

The settlement of the Northeast by Han farmers is a major event in Chinese history, like the settling of the West is to Americans. The transformation the migration has wrought on the land has been profound. In eastern Heilongjiang, the toil of thousands of farmers has converted the land from an endless forest into a vast maize field. Where tigers once roared, magpies now caw.

Amid the sea of grain fields are islands of the old Manchurian forest. One of the best is Xidaquan National Forest, just 25 km from Boli Town. After our discovery of Xidaquan in the summer of 2015, we turned it into our laboratory in which to study the birds of the eastern Palearctic woodlands. We have now spent 20 days birding in the reserve–12 days in summer 2015 and eight days in spring 2016.

Key Birds

Streamside habitat at Xidaquan, 28 May 2016. Gray's Grasshopper Warbler and Lanceolated Warbler use the thick vegetation along the unseen stream. Siberian Rubythroat and Thick-billed Warbler forage among the scrubby plants in the foreground. Common Cuckoo and Oriental Cuckoo call, and Dusky Warbler sing. Eastern Buzzard soar overhead.
Streamside habitat at Xidaquan, 28 May 2016. Gray’s Grasshopper Warbler and Lanceolated Warbler use the thick vegetation along the unseen stream. Siberian Rubythroat and Thick-billed Warbler forage among the scrubby plants in the foreground. Common Cuckoo and Oriental Cuckoo call, and Dusky Warbler sing. Eastern Buzzard soar overhead.

A birder led blindfolded through southwestern Boli County in spring would be able to tell the quality of the forest by the birds he heard. The pine plantations are nearly silent. In recently cut areas where the forest has just begun to regenerate, one may hear a few Eastern Crowned Warbler, Radde’s Warbler, and Black-faced Bunting. If a layer of undergrowth has formed, then one may hear in addition to those species Thick-billed Warbler, Siberian Blue Robin, and Siberian Rubythroat. In places where most of the trees are hardwoods and have reached about 10 m in height, the sound of birdsong is constant throughout the day. Pale Thrush sing powerfully from perches hidden in the canopy, Yellow-throated Bunting sing from treetops and defend territory, Willow Tit, Coal Tit, and Japanese Tit sing their lively Parid songs, and White-throated Rock Thrush whistle in a minor key. The best places at Xidaquan are yet another cut above, being able to support the species mentioned above as well as more habitat-sensitive species such as Mandarin Duck, Rufous Hawk-Cuckoo, Lanceolated Warbler, Gray’s Grasshopper Warbler, and White’s Thrush.

The following is a list of the key birds noted by Craig Brelsford and Elaine Du in spring 2016 in Boli County.

Band-bellied Crake Porzana paykullii

Band-bellied Crake stunned Elaine and me with its beauty. As soon as it called, I knew we had struck gold; I pulled out the camera and went to work. Nikon D3S, VR 600mm F/4G, F/9, 1/1000, ISO 1600.
Band-bellied Crake stunned Elaine and me with its beauty. As soon as it called, I knew we had struck gold; I pulled out the camera and went to work. Nikon D3S, VR 600mm F/4G, F/9, 1/1000, ISO 1600.

Our bird of the trip, found 8-9 June 2016 in a creek bottom in the Hongwei Linchang area 12 km south of Boli Town. A rare and little-known species, Band-bellied Crake is listed as near threatened by the IUCN. Band-bellied Crake breeds in Northeast China and the Russian Far East. It is threatened by habitat loss in its Southeast Asia wintering grounds as well as in Northeast China.

Band-bellied Crake, Hongwei Linchang, Boli, 9 June 2016 (00:26; 2.6 MB)

Eurasian Eagle-Owl Bubo bubo

We found a breeding pair with two owlets nesting at the high, inaccessible reaches of the big quarry at Jiulong Reservoir, where we also spotted the species in summer 2015. The giant owls are tolerant of the traffic from the road, and at a second, smaller quarry nearby, they tolerate noise from a busy poultry farm below. The owls perch conspicuously by day and are active in the villages at night. In summer 2015, eagle-owls would perch at night on the buildings of Elaine’s parents’ farm.

Mandarin Duck Aix galericulata

Mandarin Duck atop a shed, 28 May 2016.
Mandarin Duck atop a shed, 28 May 2016.

Deep in the forests of Xidaquan, we found Mandarin Duck in ponds no larger than a kiddie pool. This shy species was also found on the large pond near the entrance to Xidaquan, in rice paddies in the villages, and in flocks in Jiulong Reservoir. In spring 2016 we recorded this species on eight of our 15 birding days and in summer 2015 on seven of our 27 birding days. Boli County is the heart of the Northeast China breeding range of this most beautiful of ducks.

Black Woodpecker Dryocopus martius

A graceful woodpecker and one of the stars of the Northeast Chinese forest, noted by us on three days in spring 2016 and on 11 days in summer 2015.

White-backed Woodpecker Dendrocopos leucotos leucotos

White-backed Woodpecker Dendrocopos leucotos leucotos. Female in wooded area off Road Z004 near Xidaquan, 1 June 2016.
White-backed Woodpecker Dendrocopos leucotos leucotos. Female in wooded area off Road Z004 near Xidaquan, 1 June 2016.

The most commonly noted Dendrocopos woodpecker, noted on 10 days in summer 2015 and six days in spring 2016.

Lesser Spotted Woodpecker Dryobates minor

Trans-Eurasian species, in China present only in Xinjiang and the Northeast. Noted by us just once in spring 2016. More conspicuous in summer 2015 (seen on six days) and winter 2015 (three days).

Rufous Hawk-Cuckoo Hierococcyx hyperythrus

Noted on nine of our birding days, exclusively in the better forests around Xidaquan. Has softer version of the “Brain fever!” call of Large Hawk-Cuckoo.

Rufous Hawk-Cuckoo, Xidaquan, 2 June 2016 (01:06; 3.4 MB)

Indian Cuckoo Cuculus micropterus

Noted on eight days in Boli County in spring 2016. None of our records came from the higher-quality, higher-elevation forest deep in Xidaquan park but from the lower-quality, newer forests closer to the villages.

Oriental Cuckoo Cuculus optatus

In contrast to Indian Cuckoo, in spring 2016 most of our records of Oriental Cuckoo, spanning 13 days, came from the deep forests of Xidaquan.

Common Cuckoo Cuculus canorus

We heard the famous call of Common Cuckoo on 13 days. Most records came from open areas or from forested places near open areas.

Grey Nightjar Caprimulgus jotaka

We enjoyed pre-dawn views of this species roosting on County Road Z002 and heard its clattering call both at dawn and dusk.

Grey Nightjar calling at dawn, Blue-and-white Flycatcher in background, Xidaquan, 2 June 2016 (00:31; 2 MB)

Eurasian Jay Garrulus glandarius brandtii

Cinnamon-headed ssp. brandtii is a treat for birders in Northeast China (also occurs in Xinjiang). Resident and conspicuous in all seasons.

Coal Tit Periparus ater ater

If this bird looks familiar to European birders, it's because it's the same nominate race of Coal Tit found in Continental Europe. Photo taken in hills S of Boli Town on 7 June 2016.
If this bird looks familiar to European birders, it’s because it’s the same nominate race of Coal Tit found in Continental Europe. Photo taken in hills S of Boli Town on 7 June 2016.

The trans-Eurasian, small-crested, nominate race (ater) is the representative of Coal Tit in Northeast China. Resident, regularly noted in small numbers, often in conifers.

Coal Tit 1/2, hills S of Boli Town, 7 June 2016 (00:15; 2.2 MB)

Coal Tit 2/2, hills S of Boli Town, 7 June 2016 (00:05; 1.7 MB)

Willow Tit Poecile montanus baicalensis

Versatile Willow Tit, resident in Boli County, flourishes in habitats ranging from scrubby new forest growth to primary forest. Noted on three days in winter 2015, 21 in summer 2015, and 11 in spring 2016.

Willow Tit, territorial call, hills S of Boli Town, 7 June 2016 (00:14; 2.1 MB)

Long-tailed Tit Aegithalos caudatus caudatus

The snowball-headed nominate ssp. ranges from Scandinavia east through Heilongjiang to Jilin. It lives year-round in Boli County. We noted it on seven days in spring 2016, on two days in winter 2015, and on 14 days in summer 2015. In late summer and winter it is often the main component of bird waves.

Eastern Crowned Warbler Phylloscopus coronatus

Eastern Crowned Warbler, Xidaquan National Forest, 29 May 2016.
Eastern Crowned Warbler, Xidaquan National Forest, 29 May 2016.

The most conspicuous leaf warbler in Boli. Noted by us on 10 days in summer 2015 and on 14 of our 15 birding days in spring 2016. Sings a diverse array of songs from dawn to dusk. In 2015 was singing and defending territory into mid-August, and non-singing individuals were noted as late as 3 Sept. Found in habitats mediocre as well as pristine.

Eastern Crowned Warbler 1/2, hills S of Dawucun, 5 June 2016 (00:04; 1.7 MB)

Eastern Crowned Warbler 2/2, Xidaquan, 29 May 2016 (00:40, 2.4 MB)

Radde’s Warbler Phylloscopus schwarzi

Radde's Warbler is a powerful singer and among the most conspicuous birds at Xidaquan National Forest.
Radde’s Warbler is a powerful singer and among the most conspicuous birds at Xidaquan National Forest.

Second only to Eastern Crowned Warbler as the most conspicuous leaf warbler, with a powerful song that belies its small size. Noted regularly in summer 2015 (10 days) and spring 2016 (12 days), mostly in the better forest and forest-edge habitat at Xidaquan.

Radde’s Warbler, Xidaquan, 30 May 2016 (02:51; 7.6 MB)

Dusky Warbler Phylloscopus fuscatus

Noted on 10 days in spring 2016 and nine in summer 2015. Has less powerful song than Radde’s, lacking trills, and unlike Radde’s avoids deep forest. Often sings from conspicuous perch in high tree.

Pale-legged Leaf Warbler Phylloscopus tenellipes

Recorded on nine days in spring 2016. Heard singing and seen defending territory. Usually found in the high canopy or middle canopy in the better sections of forest at Xidaquan. Elaine and I did not note this species in Boli in summer 2015.

Pale-legged Leaf Warbler, Xidaquan, 10 June 2016 (02:00, 6.4 MB)

Pallas’s Leaf Warbler Phylloscopus proregulus

Noted on nine days in spring 2016 and on 12 days in summer 2015. In both seasons was usually noted singing loudly from the top of the tallest tree in the vicinity.

Pallas’s Leaf Warbler, hills S of Dawucun, 4 June 2016 (01:47; 5.1 MB)

Oriental Reed Warbler Acrocephalus orientalis

Oriental Reed Warbler is known to be able to use marshy habitat with woody plants rather than reeds. As reeds are rare in the areas we bird in Boli County, our Oriental Reed Warbler were found among woody plants. Found on four days in spring 2016, mainly on the shore of Jiulong Reservoir.

Oriental Reed Warbler, Jiulong Reservoir, 10 June 2016 (00:06; 1.8 MB)

Black-browed Reed Warbler Acrocephalus bistrigiceps

Noted on three days in spring 2016, with a high of 28 singing individuals being found 11 June along County Road Z002. Noted once in summer 2015.

Black-browed Reed Warbler, creek along County Road Z002, 11 June 2016 (01:40; 4.8 MB)

Thick-billed Warbler Arundinax aedon

Thick-billed Warbler, Xidaquan, 30 May 2016.
Thick-billed Warbler, Xidaquan, 30 May 2016.

Noted on six days in spring 2016, in very good habitat at Xidaquan as well as more disturbed areas along the shore of Jiulong Reservoir.

Thick-billed Warbler, Xidaquan, 29 May 2016 (00:32; 2.1 MB)

Lanceolated Warbler Locustella lanceolata

Noted on six days in spring 2016, singing from thick cover in heavily wooded habitat along creeks at Xidaquan.

Gray’s Grasshopper Warbler Helopsaltes fasciolata

Gray's Grasshopper Warbler on rare foray out of undergrowth. Xidaquan, 29 May 2016.
Gray’s Grasshopper Warbler on rare foray out of undergrowth. Xidaquan, 29 May 2016.

In spring 2016 we heard the bulbul-like call of this undergrowth skulker on seven days, exclusively in the high-quality habitat at Xidaquan.

Gray’s Grasshopper Warbler, Xidaquan, 2 June 2016 (01:05; 3.4 MB)

Siberian Thrush Geokichla sibirica

Siberian Thrush, Xidaquan, 30 May 2016.
Siberian Thrush, Xidaquan, 30 May 2016.

Noted by us on five days in spring 2016, each time in high-quality forest at Xidaquan. Noted twice in summer 2015. Sings from conspicuous perch at top of tall tree.

Below is a recording of Siberian Thrush on a typical morning at Xidaquan. In the background you can hear Oriental Cuckoo, Common Cuckoo, Radde’s Warbler, Eastern Crowned Warbler, and Gray’s Grasshopper Warbler.

Siberian Thrush, Xidaquan, 3 June 2016 (00:51; 2.8 MB)

White’s Thrush Zoothera aurea

One of the rewards for waking early was hearing the monotonous, ventriloquial song of White’s Thrush. It normally calls unseen from deep within the forest and goes silent about an hour after sunrise. One morning Elaine and I saw this most secretive bird climb a tall tree and utter its mysterious call. The first, lower note was apparently hummed through its closed or barely open mouth, while for the high note the thrush gaped wide. At a location nearby I witnessed the ventriloquy. The low note seemed to be coming from a place to my right, while the high note seemed to be coming from a place in front of me. Only after a few minutes did I realize that a single unseen White’s Thrush was uttering both notes.

White’s Thrush, Xidaquan, 2 June 2016 (01:43; 4.9 MB)

Grey-backed Thrush Turdus hortulorum

This East Asian endemic was noted on nine days in spring 2016, singing and defending territory. Also noted on two days in summer 2015.

Grey-backed Thrush, hills S of Boli Town, 7 June 2016 (08:17; 21.4 MB)

Pale Thrush Turdus pallidus

Noted on eight days in spring 2016 and five days in summer 2015. Shy. Sings powerfully from unseen perches deep in the forest. At dawn and dusk sometimes seen foraging on the roadside.

Blue-and-white Flycatcher Cyanoptila cyanomelana

We found Mark Brazil’s description of the breeding habitat to be apt: “ … in forested mountains, generally in mature mixed broadleaf forest with dense undergrowth, often near streams … ” (Birds of East Asia). Noted on eight days in spring 2016 and on two days in summer 2015.

Blue-and-white Flycatcher, broadleaf forest near Xidaquan, 27 May 2016 (01:30; 4.4 MB)

Siberian Blue Robin Larvivora cyane

Noted on 12 days in spring 2016, with a high of 21 individuals on 2 June. Its song, delivered from deep cover, consists of a burst of sound followed by a pause and buildup then another burst, each burst distinct from the other.

Siberian Blue Robin, Xidaquan, 2 June 2016 (02:42; 7.2 MB)

Rufous-tailed Robin Larvivora sibilans

Noted on seven days in spring 2016, all records except one coming from deep cover along thickly vegetated creeks at Xidaquan. Song a descending trill.

Rufous-tailed Robin, Xidaquan, 28 May 2016 (01:01; 3.2 MB)

Siberian Rubythroat Calliope calliope

Siberian Rubythroat singing on utility wire, Xidaquan, 30 May 2016.
Siberian Rubythroat singing on utility wire, Xidaquan, 30 May 2016.

Noted on four days in spring 2016 and on one day in summer 2015. Usually hides in undergrowth, but at dawn and for a few hours thereafter may be seen singing from an exposed perch.

Siberian Rubythroat, Xidaquan, 28 May 2016 (02:20; 6.4 MB)

Yellow-rumped Flycatcher Ficedula zanthopygia

Sings a long, slow, deliberate, and loud song somewhat like that of Blue-and-white Flycatcher. Noted on 12 days in spring 2016.

Yellow-rumped Flycatcher, hills S of Dawucun, 5 June 2016 (00:58; 3.1 MB)

White-throated Rock Thrush Monticola gularis

I learned the call of this East Asian specialty by doggedly following a bird that was singing and moving unseen in the canopy above me. Finally the secretive singer allowed me to glimpse him, and only then could I confirm that he was White-throated Rock Thrush. Noted on three days in spring 2016 and once in summer 2015.

White-throated Rock Thrush, Hongwei Linchang, 7 June 2016 (01:04; 4.1 MB)

Long-tailed Rosefinch Carpodacus sibiricus ussuriensis

Noted on eight days in spring 2016 and four days each in winter and summer 2015.

Meadow Bunting
Emberiza cioides weigoldi

Resident, recorded by us in winter, summer, and spring (five days in spring 2016). Seen at edges of farmland and in open areas near forests. Never in deep forests.

Meadow Bunting, forest edge at Dawucun, 31 May 2016 (00:58; 3.1 MB)

Tristram’s Bunting Emberiza tristrami

Forest bunting, with some association with conifers, commonly seen along the forest roads. Noted on eight days in spring 2016 and six days in summer 2015.

Tristram’s Bunting, Xidaquan, 3 June 2016 (00:11; 1.2 MB)

Yellow-throated Bunting Emberiza elegans

Forest bunting with a preference for deciduous habitats. Sings loudly and aggressively defends territory. Noted on nine days in spring 2016 and on 16 days in summer 2015.

Yellow-throated Bunting 1/2, song, hills S of Boli Town, 5 June 2016 (00:12; 1.3 MB)

Yellow-throated Bunting 2/2, alarm call, hills S of Dawucun, 7 June 2016 (00:50; 3.6 MB)

Black-faced Bunting Emberiza spodocephala spodocephala

Black-faced Bunting, Xidaquan, May 2016. In spring, the song of this bunting is one of the most common bird sounds in the region.
Black-faced Bunting, Xidaquan, May 2016. In spring, the song of this bunting is one of the most common bird sounds in the region.

One of the most commonly noted birds in Boli, found on 14 days in spring 2016 and 12 days in summer 2015. Versatile, often at forest edge but also in areas with fewer trees.

Black-faced Bunting, Xidaquan, 30 May 2016 (00:44; 2.5 MB)

Species of Bird Noted in Boli County, Heilongjiang, May-June 2016 (84 species)

Mandarin Duck
Mallard
Eastern Spot-billed Duck
Common Pheasant
Little Grebe
Great Crested Grebe
Crested Honey Buzzard
Northern Goshawk
Eastern Buzzard
Band-bellied Crake
Little Ringed Plover
Common Sandpiper
Hill Pigeon
Oriental Turtle Dove
Rufous Hawk-Cuckoo
Indian Cuckoo
Oriental Cuckoo
Common Cuckoo
Eurasian Eagle-Owl
Grey Nightjar
White-throated Needletail
Oriental Dollarbird
Common Kingfisher
Eurasian Wryneck
Lesser Spotted Woodpecker
White-backed Woodpecker
Black Woodpecker
Common Kestrel
Eurasian Hobby
Ashy Minivet
Brown Shrike
Chinese Grey Shrike
Eurasian Jay
Azure-winged Magpie
Eurasian Magpie
Spotted Nutcracker
Carrion Crow
Large-billed Crow
Coal Tit
Willow Tit
Japanese Tit
Barn Swallow
Asian House Martin
Red-rumped Swallow
Long-tailed Tit
Dusky Warbler
Radde’s Warbler
Pallas’s Leaf Warbler
Arctic Warbler
Pale-legged Leaf Warbler
Eastern Crowned Warbler
Oriental Reed Warbler
Black-browed Reed Warbler
Thick-billed Warbler
Lanceolated Warbler
Gray’s Grasshopper Warbler
Chestnut-flanked White-eye
Eurasian Nuthatch
Siberian Thrush
White’s Thrush
Grey-backed Thrush
Pale Thrush
Asian Brown Flycatcher
Blue-and-white Flycatcher
Siberian Blue Robin
Rufous-tailed Robin
Siberian Rubythroat
Yellow-rumped Flycatcher
Daurian Redstart
White-throated Rock Thrush
Stejneger’s Stonechat
Eurasian Tree Sparrow
Siberian Accentor
Grey Wagtail
White Wagtail
Olive-backed Pipit
Hawfinch
Long-tailed Rosefinch
Grey-capped Greenfinch
Meadow Bunting
Tristram’s Bunting
Chestnut-eared Bunting
Yellow-throated Bunting
Black-faced Bunting

Birds We Missed

The deep forest at Xidaquan. This seemingly stable environment shows a very different set of birds according to the season. In the area where this photo was taken, in August and September 2015 Elaine and I found Eurasian Treecreeper, Goldcrest, and Yellow-browed Warbler. We saw none of those species in May and June 2016. Pale-legged Leaf Warbler, White's Thrush, and Lanceolated Warbler were in the same area in spring 2016.
The deep forest at Xidaquan. This seemingly stable environment shows a very different set of birds according to the season. In the area where this photo was taken, in August and September 2015 Elaine and I found Eurasian Treecreeper, Goldcrest, and Yellow-browed Warbler. We saw none of those species in May and June 2016. Pale-legged Leaf Warbler, White’s Thrush, and Lanceolated Warbler were in the same area in spring 2016.

The forests of Boli County change markedly from season to season. On our brief initial trip in January 2015, winter visitors such as Common Redpoll, Eurasian Bullfinch, and Pallas’s Rosefinch were scraping out a living in the snowy, barren forests. In late summer bird waves are common, in springtime virtually non-existent. Late summer shows few birds in breeding mode but offers passage migrants. In springtime the songs of breeding birds resound.

Birds seen in one season may not be seen in another. In some cases, as with Hazel Grouse, it is easy to understand why. In other cases, the reason is less clear. Other birds, such as Red-flanked Bluetail, that one would expect in the region have yet to appear on any of our lists. Here are some of the birds we missed on our spring 2016 trip.

Hazel Grouse: On our summer 2015 expedition, Elaine and I noted this species on 10 days, both in the excellent habitat of Xidaquan and in the lower-quality forest in the hills south of Dawucun. We noted no Hazel Grouse in spring 2016. The grouse were breeding and had retired to the quiet recesses of the forest with their young.

Great Spotted Woodpecker: Common in much of China, noted just once by Elaine and me in summer 2015 and not at all in spring 2016. Its congener White-backed Woodpecker is common in the area.

Eurasian Three-toed Woodpecker: Scarce species noted by us once at Xidaquan in summer 2015. Missed in spring 2016.

Rufous-bellied Woodpecker, Japanese Pygmy Woodpecker: Rufous-bellied Woodpecker ssp. subrufinus is reported in eastern Heilongjiang, as is Japanese Pygmy Woodpecker. Neither has been found by us around Boli.

Black-naped Oriole: A species yet to be noted by us in Boli.

Azure Tit: This unmistakable tit has been reported around Lake Khanka, on the Sino-Russian border east of Boli County. We have yet to see the species in Boli.

Marsh Tit: Race brevirostris noted by us on 13 days in summer 2015, zero times in spring 2016.

Manchurian Bush Warbler, Baikal Bush Warbler, Chinese Bush Warbler: Yet to be noted by us in Boli.

Asian Stubtail: Noted on four days in summer 2015, zero times in spring 2016.

Manchurian Reed Warbler: We made a point to look for this bird, paying careful attention to the Black-browed Reed Warbler we were finding. No luck.

Yellow-browed Warbler: In spring 2016 we were expecting big counts of this species, having noted it on nine days in summer 2015. We noted it not once in spring 2016. It most likely does not breed in the area and was passing through the region in August and September 2015.

Arctic Warbler: Also apparently a passage migrant at Xidaquan. In spring 2016 we had but one record of a singing individual at Xidaquan. In summer 2015 we had two records.

Two-barred Warbler: Yet another apparent passage migrant. Noted on four days in summer 2015, zero times in spring 2016.

Red-flanked Bluetail: Surprise! We have yet to record this species in Boli County.

Eurasian Treecreeper: Noted by us four times in summer 2015, zero times in spring 2016.

The husband-and-wife birding team of Elaine Du (L) and Craig Brelsford, Xidaquan National Forest, Boli, Heilongjiang, 10 June 2016.
The husband-and-wife birding team of Elaine Du (L) and Craig Brelsford, Xidaquan National Forest, Boli, Heilongjiang, 10 June 2016.

List of Place Names

Boli: name that may refer to either Boli County or Boli Town.

Boli County (Bólì Xiàn [勃利县]): jurisdiction in Qitaihe Prefecture, SE Heilongjiang. Area: 3,962 sq. km. Pop.: 370,000.

Boli Town (Bólì Zhèn [勃利镇]): urbanized area in & administrative center of Boli County. 45.752960, 130.579479.

Changbai Mountains (Chángbái Shān [长白山]): range running from SE Heilongjiang S to North Korea. Laoye Mountains near Boli are part of Changbai Mountains.

Dawucun (Dàwǔcūn [大五村]): village in Boli County, Qitaihe Prefecture, Heilongjiang, 3 km from Boli Town. Birthplace of Elaine Du. 45.732679, 130.589612.

Heilongjiang (Hēilóngjiāng [黑龙江]): province NE China. Area: 454,800 sq. km. Area (comparative): slightly larger than Sweden & California. Pop.: 38.3 million.

Hongwei Linchang (Hóngwěi Línchǎng [宏伟林场]): area in Boli County S of Boli Town. Important birding spot at 45.638703, 130.547478.

Jiamusi (Jiāmùsī Shì [佳木斯市]): prefecture-level city E Heilongjiang.

Jiulong Reservoir (Jiǔlóng Shuǐkù [九龙水库]): reservoir in Boli County S of Boli Town. 45.706874, 130.517068.

Laoye Mountains (Lǎoye Lǐng [老爷岭]): offshoot of Changbai Mountains. Xidaquan National Forest is in the Laoye Mountains.

Qitaihe (Qītáihé Shì [七台河市]): prefecture E Heilongjiang of which Boli County is a part. Area: 6,221 sq. km. Pop.: 920,000.

Xidaquan National Forest (Xīdàquān Guójiā Sēnlín Gōngyuán [西大圈国家森林公园]): forest reserve in Boli County, Heilongjiang. 45.727751, 130.317316.

Main gate to Xidaquan National Forest, 2 June 2016.
Main gate to Xidaquan National Forest, 2 June 2016.

Selected Bibliography

Brazil, Mark. Birds of East Asia. Princeton University Press. Co-first reference (along with Collins Bird Guide) in Northeast China.

Brelsford, Craig. A Photographic Field Guide to the Birds of China. (Work in progress; notes and drafts in Craig’s laptop. Please help us create this field guide by making a donation.)

del Hoyo, Josep, et al., eds. The Handbook of the Birds of the World. Lynx Edicions.

Kennerley, Peter & David Pearson. Reed and Bush Warblers. Christopher Helm.

Lynx Edicions. The Internet Bird Collection. ibc.lynxeds.com

MacKinnon, John & Karen Phillipps. A Field Guide to the Birds of China. Oxford University Press.

Oriental Bird Club. Oriental Bird Images. orientalbirdimages.org.

Smith, Andrew T. & Yan Xie, eds. Mammals of China. Princeton University Press.

Mullarney, Killian, Lars Svensson, Dan Zetterström, Peter Grant. Collins Bird Guide: The Most Complete Guide to the Birds of Britain and Europe. HarperCollins. Co-first reference (along with Birds of East Asia) in Northeast China.

Xeno-Canto Foundation. Xeno-Canto: Bird Sounds from Around the World. xeno-canto.org. Craig has downloaded hundreds of calls from this Web site.

Equipment

Elaine's niece Lisa Li (R) tries out Elaine's Zeiss Conquest HD 8 x 42 binoculars while her aunt shows her a quartet of Little Ringed Plover in the fields behind Dawucun, 31 May 2016.
Elaine’s niece Lisa Li (R) tries out Elaine’s Zeiss Conquest HD 8 x 42 binoculars while her aunt shows her a quartet of Little Ringed Plover in the fields behind Dawucun, 31 May 2016.

Cameras: Nikon D3S; for landscapes, Apple iPad, Apple iPhone 4S, and Apple iPhone 6
Lens: Nikon VR 600mm F/4G
Sound recorder: Olympus DM-650
Binoculars: Swarovski EL 8 x 32 (Craig), Zeiss Conquest HD 8 x 42 (Elaine)
Spotting scope: Swarovski ATX-95

Featured image: Drake Mandarin Duck, found in a small pool deep in the forest at Xidaquan National Forest on 1 June 2016. (Craig Brelsford)

Keep shanghaibirding.com on the web. Donate today.




Chinese Egret & Singing Pale-legged Leaf Warbler on Yangshan

From Thurs. 14 April to Tues. 19 April 2016, Elaine and I combined inner-city birding (Century Park, Shanghai Botanical Garden) with suburban-coastal birding (Nanhui, Lesser Yangshan). We noted 102 species. Sun. 17 April was the big day, with 95 species noted. Among them were 2 Chinese Egret and 3 singing Pale-legged Leaf Warbler on Lesser Yangshan and Rufous-faced Warbler, Swinhoe’s Minivet, and near-threatened Curlew Sandpiper at Nanhui. Among our many firsts-of-season were 10 Narcissus Flycatcher, 4 Eastern Crowned Warbler, 2 members of the Arctic Warbler Complex, and Yellow-browed Bunting. With the spring migration rolling on strong, even the city parks gave us seasonal firsts, with Eurasian Woodcock and Blue-and-white Flycatcher at Century on Thursday and Eyebrowed Thrush Tuesday at the Botanical Garden. During the 6-day period, we noted 0 raptors, whether Accipitriform, Strigiform, or Falconiform.

When silent, as is most often the case in Shanghai even in spring, Pale-legged Leaf Warbler and Sakhalin Leaf Warbler are indistinguishable, and a typical bird list this time of year includes the entry “Pale-legged/Sakhalin Leaf Warbler Phylloscopus tenellipes/borealoides.” The songs of these lookalikes are, however, distinct, and on Sunday in the wooded areas of Garbage Dump Valley on Lesser Yangshan we heard the cricket-like song of P. tenellipes. I made a recording (00:22; 1.7 MB):

On Tuesday, Elaine and I found a silent pair; they were moving along thick branches in the manner of a nuthatch and pumping their tail, but because they were not singing we could not ID them beyond Pale-legged/Sakhalin.

Garbage Dump Valley also yielded Meadow Bunting, Brown-flanked Bush Warbler, and Manchurian/Japanese Bush Warbler, and Temple Mount gave us a single Goldcrest as well as Swinhoe’s/Pin-tailed Snipe.

On Sunday, Blue-and-white Flycatcher were noted in Garbage Dump Valley, on Temple Mount, and at Nanhui and on Thursday at Century. Each male was studied carefully so as not to miss Zappey’s Flycatcher, a recently recognized species that has been recorded in Shanghai (by Swedish birder Jocko Hammar in 2014). This spring, we Shanghai birders will do well to study each Blue-and-white Flycatcher carefully, in particular adult males, lest we miss Zappey’s. In Forktail No. 28, August 2012, Paul Leader and Geoff Carey write: “Males from populations that breed in central China [i.e., Zappey’s] are distinct from other populations in being blue or blue-green across the breast, throat and ear-coverts, and in having black or blackish restricted to the lores. … The upperparts are typically blue-green.” There are various other distinctions, not noted here.

For the first time we noted Marsh Grassbird north of the Magic Parking Lot/Holiday Inn at Nanhui. This new location is on the road leading into the reed bed and lined with street lamps. Another, larger location is 30.866006, 121.939614, a point 2.8 km S of the lock at Nanhui and 4.1 km S of the Magic Parking Lot/Holiday Inn. We discovered Helopsaltes pryeri at the southern location on 10 April and found them there again Sunday. 3 Reed Parrotbill were in the area, and Pallas’s Reed Bunting, so numerous just a few weeks ago, were nearly absent, most of them having departed for breeding areas north.

The Chinese Egret were our reward for never failing to scrutinize groups of Little Egret. Sure enough, our Egretta eulophotes were associating with 3 E. garzetta on a taut anchor line tethering a boat to the bottom of a little bay along Gangchi Road (30.612507, 122.105993). We are not sure whether our view is a one-off or whether something about that bay is attractive to that species.

Little Curlew, Lesser Yangshan Island, 17 April 2016. © 2016 by Stephan Popp & Xueping Popp.
Little Curlew, Lesser Yangshan Island, 17 April 2016. © 2016 by Stephan Popp & Xueping Popp.

At the Accidental (and probably Temporary) Wetland on Lesser Yangshan, we found the 2 Little Curlew, 1 of our 2 Garganey, Purple Heron, Black-tailed Godwit, 1 of our 6 Pacific Swift, 18 of our 80 Sharp-tailed Sandpiper, 2 Red-rumped Swallow, and Oriental Reed Warbler. Accidental Marsh sits on land reclaimed when a causeway was built linking Lesser Yangshan and Dazhitou Island. The coordinates of this spot are 30.611902, 122.114873. Bird this spot while the birding is good!

On Thurs. 14 April, Elaine and I birded Century Park, noting 31 species. 2 Eurasian Woodcock were seen in the forested area near Gate 7 known as “Woodcock Forest” (31.215413, 121.547678). There were impressive flocks of Brambling, 72 in all. Other highlights: Eurasian Hoopoe 1, Pale Thrush 23, White’s Thrush 2, and Chinese Blackbird 40, among them 2 fledglings.

The encounter with the woodcocks occurred just a few meters from the point where Elaine and I found this species last 30 Oct. Woodcock Forest is usually devoid of humans, and forest species tend to pool there. For best results, tiptoe in and scan silently. Do not forget to look into the canopy; I have seen sparrowhawks there.

We found no Yellow-bellied Tit, the only leaf warbler we found was a single Yellow-browed Warbler, and we thought low our count of just 1 Grey-backed Thrush. There were no other flycatchers besides the Blue-and-white.

As I have noted many times before, thieves are active at Century. On Thursday I had the unusual experience of thief-watching. Two folks were sitting on a park bench looking out over the lake. Elaine and I were standing far behind and noticed an ugly man in ratty clothing approach the couple from the forest behind them. He was moving in a catlike manner and was either casing the couple or was about to snatch something. I moved in noisily, and he slunk off.

This thief and others in his gang must be skillful, otherwise they wouldn’t have operated in the park so long. Their booty is phones, wallets, and purses, their victims distracted persons relaxing in the park. To avoid falling prey, keep your phone zipped in your pocket, leave nothing lying around, and use your powers of observation honed through birding to assess the people around you.

On Tues. 19 April, a walk through the Shanghai Botanical Garden netted Elaine and me 28 species. 2 Japanese Tit fledglings were following their parents and making begging calls, 4 Common Sandpiper were in Zhāngjiātáng Hé (张家塘河), and White’s Thrush, Grey-backed Thrush, Pale Thrush, and Eyebrowed Thrush were found in a quiet wooded area (31.147780, 121.438917) along the stream.

Sunday marked the reunion of the five-member Dream Team after a winter hiatus. Husband-wife members Stephan and Xueping Popp took many fine shots, and Stephan once again performed skillfully behind the wheel. Senior Birder Michael Grunwell combined sober experience with boyish enthusiasm, the latter particularly in evidence when he beheld Narcissus Flycatcher, a lifer for him. Elaine Du did her usual fine job keeping the list. Though I’m making a quick recovery from my intercostal muscle strain suffered 10 April, still I traveled light, eschewing photography and using only binoculars.

PHOTOS

Purple Heron, Lesser Yangshan Island, 17 April 2016. © 2016 by Stephan Popp & Xueping Popp.
Purple Heron, Lesser Yangshan Island, 17 April 2016. © 2016 by Stephan Popp & Xueping Popp.
Rufous-faced Warbler, Nanhui, Shanghai, China, 17 April 2016. © 2016 by Stephan Popp & Xueping Popp.
Rufous-faced Warbler, Nanhui, Shanghai, China, 17 April 2016. © 2016 by Stephan Popp & Xueping Popp.

Featured image: Elaine Du (L) and Xueping Popp scan for leaf warblers in Garbage Dump Valley on Lesser Yangshan Island, Zhejiang, China, Sun. 17 April 2016. (Craig Brelsford)

Subscribe! Send an email with
“Subscribe” in the subject to
info@shanghaibirding.com.

Donate to Shanghai Birding!