Late Summer Shanghai

As summer melts into fall, Pudong’s Cape Nanhui continues to prove to be one of the best birding locations in China. In the period 26 Aug. to 8 Sept. 2017, I birded four days at the most southeasterly point of Shanghai, as well as at other key locations in Earth’s Greatest City. I noted 106 species.

Highlights were Brown-chested Jungle Flycatcher at Microforest 1, beautiful white-morph Amur Paradise Flycatcher at Binhai Forest Park, Fairy Pitta in the Cape Nanhui microforests, Greater Painted-snipe holding on in a canal near the coast, Asian Dowitcher at South Pond, Chinese Egret at North Pond and on South Beach, and Pacific Golden Plover at the sod farm south of Pudong Airport. Sakhalin Leaf Warbler and Pale-legged Leaf Warbler were calling in the Magic Parking Lot, and endangered Far Eastern Curlew and Great Knot were recorded at Nanhui. Crested Goshawk appeared in inner-city Zhongshan Park.

Here are some of the best birds:

Brown-chested Jungle Flycatcher
Cyornis brunneatus

Brown-chested Jungle Flycatcher, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)
Brown-chested Jungle Flycatcher, Microforest 1 (30.923889, 121.971635), 4 Sept. 2017. Cyornis brunneatus is a very scarce vagrant to Shanghai. The species breeds in southeast China and spends the winter in Malaysia and Indonesia. (Craig Brelsford)

After nearly 10 years in Shanghai and countless visits to Cape Nanhui, I still occasionally score life birds there, a testament to the richness of the hot spot. Such was the case 4 Sept. with Brown-chested Jungle Flycatcher. The bird, an adult, was in Microforest 1 (30.923889, 121.971635).

Brown-chested Jungle Flycatcher is a very scarce vagrant to Shanghai. Cyornis brunneatus breeds in southeast China and spends the winter in peninsular Malaysia, Sumatra, and Borneo. It is uncommon even in its core range and virtually unknown in the Shanghai region outside Cape Nanhui; the place closest to Shanghai where I have heard of it occurring is Emeifeng, 635 km southwest of Shanghai in Fujian.

The IUCN lists the species as Vulnerable because of the loss of mature primary lowland forest throughout its range.

Brown-chested Jungle Flycatcher, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)
I shoot in manual mode for fuller control. Here, using my seven-year old Nikon D3S and eight-year old Nikon 600 mm f/4, I chose the following settings: 1/160, f/11, ISO 1250. I used no tripod; instead, I steadied my rig on my knee. (Craig Brelsford)

Amur Paradise Flycatcher
Terpsiphone incei

Japanese Paradise Flycatcher
T. atrocaudata

Amur Paradise Flycatcher, Dongzhai, Henan, 2010. (Craig Brelsford)
Amur, Dongzhai, 2010. (C. Brelsford)

3 Amur found 27 Aug. at Binhai Forest Park, the heavily wooded green space near Cape Nanhui, 4.5 km inland from the East China Sea. A stunning white-morph male and rufous-morph were continuously together, and we found a single rufous-morph in another part of the park. The white-morph as well as the rufous-morph accompanying it were calling. I have seen dozens of paradise flycatchers in Shanghai over the years and heard only one call (a Japanese for 1 or 2 seconds). Why were the Amur at Binhai Forest Park calling?

Binhai Forest Park is visited little and birded even less; could this quiet, thickly wooded park hold breeding Amur Paradise Flycatcher? As the white-morph male looks like something out of a fairy tale and is a bird even a non-birder would recognize, I asked park employees whether they had seen it. All said no.

The white-morph Amur that U.S. birder Tom Hurley and I saw was only the second I had ever beheld and a first for me in Shanghai. At Dongzhai National Nature Reserve, Henan, on 5 June 2010, I photographed the white-morph shown right. The Binhai white-morph lacked the long tail feathers of the bird I saw at Dongzhai but was still an unforgettable sight.

Amur (top) and Japanese Paradise Flycatcher, Aug. 2017, Cape Nanhui. (Craig Brelsford)
Dorsal views of Amur (top) and Japanese Paradise Flycatcher. ​If the mantle, back, and tail have a purplish-brown hue, then you are likely looking at Japanese Paradise Flycatcher, known helpfully in Chinese as ‘Purple Paradise Flycatcher.’ If the upperparts are cinnamon-brown, then it is likely Amur. White-morph males are never Japanese, as the white morph does not occur in that species. 26-27 Aug. 2017, Cape Nanhui. For more on Amur-Japanese ID, see my post ‘ID Workshop: Paradise Flycatchers.’ (Craig Brelsford)

Japanese Paradise Flycatcher is the more common of the two paradise flycatchers in Shanghai. The photo above shows the differences in upperpart coloration between rufous-morph Amur Paradise Flycatcher and Japanese Paradise Flycatcher.

Fairy Pitta Pitta nympha

Fairy Pitta, Microforest 4, Cape Nanhui, Shanghai. 4 Sept. 2017. (Craig Brelsford)
Fairy Pitta, Microforest 4 (30.953225, 121.959083), Cape Nanhui, 4 Sept. 2017. The first week of September seems to be peak season for these passage migrants in Shanghai. The pitta shown here is a juvenile, discernible as such by the pinkish tip to its bill. The IUCN lists Fairy Pitta as Vulnerable. (Craig Brelsford)

On 4 Sept. at Nanhui, Elaine and I sneaked away from the action in Nanhui’s Microforest 1, where the photographers were set up. Microforest 4 was devoid of humans and peaceful. I tiptoed in. I scanned the undergrowth before me and, to my surprise, found a Fairy Pitta.

The pitta was standing on the ground, almost completely blanketed by a tangle of leaves, branches, and vines. Its big black eye was fixed on me. It didn’t move. I looked at the pitta, the pitta at me.

We stared at each other for 10 minutes.

Thus roosts the pitta during migration. It parks itself in thickets and waits. It bides its time, conserves its energy. Somewhere south of Shanghai, it will veer off the coast and fly non-stop across the South China Sea to Borneo, where it will spend the winter.

The pittas are mainly tropical species. Most are short-distance migrants. Not Fairy Pitta. No pitta invades the temperate world as deeply as Fairy Pitta; none makes so audacious an incursion into the north. None makes so long and daring a migration across hundreds of miles of sea.

My pitta was saving up its energy for its life-or-death run across the sea. Good luck, you explorer, you risk-taker! Good luck, Fairy Pitta.

Greater Painted-snipe
Rostratula benghalensis

Greater Painted-snipe Rostratula benghalensis, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)
Nikon D3S, 600 mm f/4, 1/500, f/5.6, ISO 1000, hand-held (steadied on door of car). (Craig Brelsford)

Viewed with my wife Elaine Du at dusk 3 Sept. then viewed again the next morning at dawn. For weeks, the painted-snipes have been found at a single spot (30.939534, 121.955370) in a trash-strewn canal. Earlier, when news of the painted-snipe at Cape Nanhui first broke, I wrote a post in which I regretted sharing the location where were found the painted-snipes, a rare species in Shanghai. As things stand now, I can breathe easier; the many photographers who have visited the location have had no ill effect. The birds I found 4 Sept. were aware of me but behaved normally. They fed, drank, and preened. I used my car as a blind and never got out. The painted-snipes at Nanhui tolerate photographers confined to their cars.

Greater Painted-snipe Rostratula benghalensis, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)
1/400, f/5.6, ISO 6400. (Craig Brelsford)
Greater Painted-snipe Rostratula benghalensis, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)
1/250, f/10, ISO 1000. (Craig Brelsford)
Greater Painted-snipe Rostratula benghalensis, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)
1/500, f/7.1, ISO 1000. (Craig Brelsford)
Greater Painted-snipe Rostratula benghalensis, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)
1/400, f/5.6, ISO 6400. (Craig Brelsford)
Greater Painted-snipe Rostratula benghalensis, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)
1/250, f/5.6, ISO 6400. (Craig Brelsford)
Greater Painted-snipe Rostratula benghalensis, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)
1/320, f/10, ISO 1000. (Craig Brelsford)
Greater Painted-snipe Rostratula benghalensis, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)
1/200, f/5.6, ISO 6400. (Craig Brelsford)
Greater Painted-snipe Rostratula benghalensis, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)
1/200, f/5.6, ISO 6400. (Craig Brelsford)
Greater Painted-snipe Rostratula benghalensis, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)
1/250, f/9, ISO 1000. (Craig Brelsford)

Asian Dowitcher
Limnodromus semipalmatus

27 Aug., South Pond. Juvenile. Videoed by me using my iPhone 6, adapter by the U.S. company PhoneSkope, and my Swarovski ATX-95 spotting scope:

Chinese Egret Egretta eulophotes

Below, video of Chinese Egret 26 Aug. at Cape Nanhui showing differences between Chinese Egret and Little Egret.

Other highlights:

Yellow Bittern Ixobrychus sinensis

Photographed by me in gorgeous morning light 4 Sept. at Cape Nanhui.

Yellow Bittern, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)
Yellow Bittern, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)

Black Bittern Ixobrychus flavicollis

Uncommon in Shanghai. Found 26 Aug. at Cape Nanhui.

Striated Heron Butorides striata

Uncommon in Shanghai. Found 27 Aug. at Binhai Forest Park.

Crested Goshawk Accipiter trivirgatus

Adult plus another goshawk calling unseen at inner-city Zhongshan Park on 8 Sept.

I videoed the goshawks:

Pacific Golden Plover Pluvialis fulva
Grey-headed Lapwing Vanellus cinereus

27 Aug. at sod farm south of Pudong Airport.

Great Knot Calidris tenuirostris

In high-tide roost 4 Sept. on South Beach (30.860673, 121.925113), just north of Donghai Bridge at Cape Nanhui.

Curlew Sandpiper C. ferruginea

South Pond, Cape Nanhui, 26 Aug. Video:

Pin-tailed Snipe Gallinago stenura

Pin-tailed Snipe, 3 Sept. 2017, Cape Nanhui. (Craig Brelsford)
Pin-tailed Snipe, 3 Sept. 2017, Cape Nanhui. (Craig Brelsford)

Party of 3 on 26 Aug. at Cape Nanhui. When flushed, made loud, raspy, memorable call. I quickly compared the call I had just heard to calls of Pin-tailed Snipe downloaded from xeno-canto.org to my iPhone. The match was perfect. Lookalike Swinhoe’s Snipe rarely calls when flushed. Dark underwing clear in my many photographs of the trio. Flew high when flushed, then returned to land at point only 50 m from where originally flushed.

Gull-billed Tern Gelochelidon nilotica

Gull-billed Tern, 4 Sept. 2017, Cape Nanhui, Pudong, Shanghai. (Craig Brelsford)
Gull-billed Tern, 4 Sept., Cape Nanhui. Note the thick bill. (Craig Brelsford)

The canals on the inland side of the sea wall were resounding with the characteristic yaps of this passage migrant. A clear photo is especially useful for discerning the thick bill.

Lesser Cuckoo Cuculus poliocephalus

Lesser Cuckoo, 26 Aug. 2017, Cape Nanhui, Shanghai. (Craig Brelsford)
Lesser Cuckoo, 26 Aug., Cape Nanhui. (Craig Brelsford)

Non-hepatic adult 26 Aug. at Cape Nanhui. See photo above. Reasoning behind ID of Lesser Cuckoo:

(1) No suggestion of brighter yellow iris that is characteristic of Eurasian Cuckoo as well as Oriental and Himalayan Cuckoo (darker iris more characteristic of Indian Cuckoo and Lesser Cuckoo)

(2) Dark rump and uppertail coverts contrast little with dark tail, while dark tail and rump contrast markedly with paler back, all pointing to Lesser Cuckoo

(3) On tail, very likely no subterminal black band (as in Indian Cuckoo), pointing again to Lesser Cuckoo

Cuculus sp., 4 Sept. 2017, Cape Nanhui. (Craig Brelsford)
This cuckoo, seen 4 Sept. 2017 at Cape Nanhui, has the dark eye, well-defined and widely spaced barring, and small size suggestive of Lesser Cuckoo. (Craig Brelsford)

Pale-legged Leaf Warbler
Phylloscopus tenellipes

Sakhalin Leaf Warbler

P. borealoides

In the wake of my post of 31 Aug. 2017 about distinguishing Pale-legged from Sakhalin Leaf Warbler by call, I was hoping to find more members of this species pair. On 4 Sept. 2017 at Pudong‘s Cape Nanhui, I was richly rewarded. For more, see my 10 Sept. 2017 post, “Pale-Sak Calls: An Addendum.”

Sand Martin Riparia riparia

Sand Martin, Cape Nanhui, 4 Sept. (Craig Brelsford)
Sand Martin, Cape Nanhui, 4 Sept. 2017. (Craig Brelsford)

Riparia riparia is an uncommon passage migrant in Shanghai. Note the well-defined breast band on my bird, distinguishing it from Pale Martin Riparia diluta, which has an ill-defined breast band.

Siberian Blue Robin Larvivora cyane

It’s worth stressing how good is our opportunity here in Shanghai to view Siberian Blue Robin for a few short weeks each spring and fall. On the breeding grounds up in northern China, the males sing loudly and beautifully but are very hard to see; no Siberian Blue Robin I experienced on the breeding grounds ever sang from anything like an exposed perch. The few I was able to see in Elaine’s hometown of Boli, Heilongjiang sang on or near the ground. Females are almost impossible to see; in fact, I saw not one in Heilongjiang in May-June 2016. Siberian Blue Robin are also apparently hard to see on their wintering grounds in south China and Southeast Asia. Places such as Cape Nanhui are probably among the best places in the world to view this common but shy species. We Shanghai birders have yet another reason to count ourselves lucky.

Also noted by me in Shanghai 27 Aug.-8 Sept. 2017:

Garganey Spatula querquedula
Common Pheasant Phasianus colchicus
Little Grebe Tachybaptus ruficollis
Grey Heron Ardea cinerea
Purple Heron A. purpurea
Great Egret A. alba
Intermediate Egret A. intermedia
Little Egret Egretta garzetta
Eastern Cattle Egret Bubulcus coromandus
Black-crowned Night Heron Nycticorax nycticorax
Chinese Pond Heron Ardeola bacchus
Common Moorhen Gallinula chloropus
Eurasian Coot Fulica atra
Black-winged Stilt Himantopus himantopus
Pied Avocet Recurvirostra avosetta
Kentish Plover Charadrius alexandrinus
Lesser Sand Plover C. mongolus
Greater Sand Plover C. leschenaultii
Little Ringed Plover C. dubius
Whimbrel Numenius phaeopus
Far Eastern Curlew N. madagascariensis
Eurasian Curlew N. arquata
Black-tailed Godwit Limosa limosa
Ruddy Turnstone Arenaria interpres
Red Knot Calidris canutus
Broad-billed Sandpiper C. falcinellus
Sharp-tailed Sandpiper C. acuminata
Long-toed Stint C. subminuta
Red-necked Stint C. ruficollis
Sanderling C. alba
Dunlin C. alpina
Common Snipe Gallinago gallinago
Red-necked Phalarope Phalaropus lobatus
Common Sandpiper Actitis hypoleucos
Grey-tailed Tattler Tringa brevipes
Spotted Redshank T. erythropus
Common Greenshank T. nebularia
Marsh Sandpiper T. stagnatilis
Wood Sandpiper T. glareola
Common Redshank T. totanus
Oriental Pratincole Glareola maldivarum
Black-tailed Gull Larus crassirostris
White-winged Tern Chlidonias leucopterus
Whiskered Tern C. hybrida
Common Tern Sterna hirundo
Feral Pigeon (Rock Dove) Columba livia
Red Turtle Dove Streptopelia tranquebarica
Spotted Dove S. chinensis
Himalayan Swiftlet Aerodramus brevirostris
Lesser Coucal Centropus bengalensis
Oriental Dollarbird Eurystomus orientalis
Eurasian Wryneck Jynx torquilla
Common Kingfisher Alcedo atthis
Common Kestrel Falco tinnunculus
Black-winged Cuckooshrike Coracina melaschistos
Tiger Shrike Lanius tigrinus
Brown Shrike L. cristatus
Long-tailed Shrike L. schach
Black-naped Oriole Oriolus chinensis
Japanese Tit Parus minor
Black-throated Bushtit Aegithalos concinnus
Japanese White-eye Zosterops japonicus
Barn Swallow Hirundo rustica
Light-vented Bulbul Pycnonotus sinensis
Arctic/Kamchatka Leaf/Japanese Leaf Warbler Phylloscopus borealis/examinandus/xanthodryas
Eastern Crowned Warbler P. coronatus
Oriental Reed Warbler Acrocephalus orientalis
Thick-billed Warbler Iduna aedon
Zitting Cisticola Cisticola juncidis
Plain Prinia Prinia inornata
Reed Parrotbill Paradoxornis heudei
Vinous-throated Parrotbill Sinosuthora webbiana
Javan Myna Acridotheres javanicus
Crested Myna A. cristatellus
Chinese Blackbird Turdus mandarinus
Grey-streaked Flycatcher Muscicapa griseisticta
Asian Brown Flycatcher M. dauurica
Oriental Magpie-Robin Copsychus saularis
Blue-and-white Flycatcher Cyanoptila cyanomelana
Yellow-rumped Flycatcher Ficedula zanthopygia
Chinese Grosbeak Eophona migratoria
Eurasian Tree Sparrow Passer montanus
Eastern Yellow Wagtail Motacilla tschutschensis tschutschensis
White Wagtail M. alba

Featured image: All-star birds of late summer 2017 at Pudong’s Cape Nanhui: Clockwise from top left, Brown-chested Jungle Flycatcher, Fairy Pitta, Greater Painted-snipe, and Great Knot. The Brown-chested Jungle Flycatcher and Greater Painted-snipe were photographed 4 Sept. 2017 at Cape Nanhui. Fairy Pitta photographed 5 June 2010 in Dongzhai, Henan, and Great Knot photographed 11 Sept. 2014 at Yangkou, Rudong, Jiangsu. All by Craig Brelsford.

Pale-Sak Calls: An Addendum

In the wake of my recent post on distinguishing Pale-legged Leaf Warbler from Sakhalin Leaf Warbler by call, I have been hoping to find more members of this species pair in Shanghai. On 4 Sept. 2017 at Pudong’s Cape Nanhui, my hopes were fulfilled in a big way. At the Magic Parking Lot (30.884889, 121.968222), not one but both species were calling.

Below, the recordings I made with my Olympus DM-650 pocket recorder. The first Sakhalin recording was made at Microforest 4 (30.953225, 121.959083), 7.7 km north of the Magic Parking Lot on the coastal road. The others were made at the Magic Parking Lot.

Note the higher frequency of the calls of Pale-legged–on average a full kilohertz higher. The difference is discernible by the keen listener, but nothing tells the story better than the spectrograms.

To summarize what I argued in the previous post: The calls, as well as the very distinctive songs, of Pale-legged Leaf Warbler and Sakhalin Leaf Warbler are diagnostic–that is, they differ markedly and consistently and are a reliable basis for an ID. The diagnosability of the calls of the two species has been affirmed by various researchers, among them Yap et al. (2014; Birding Asia 21: 76–81).

Sakhalin Leaf Warbler Phylloscopus borealoides, call, Microforest 4 (30.953225, 121.959083), Cape Nanhui, Pudong, Shanghai, 4 Sept. 2017 (00:02; 528 KB)

Audio spectrogram of call of Sakhalin Leaf Warbler.

Sakhalin Leaf Warbler, call, Magic Parking Lot (30.884889, 121.968222), Cape Nanhui, Pudong, Shanghai, 4 Sept. 2017 (00:07; 1.4 MB)

Audio spectrogram of call of Sakhalin Leaf Warbler.

Pale-legged Leaf Warbler Phylloscopus tenellipes, call, Magic Parking Lot, 4 Sept. 2017 (00:19; 3.7 MB)

Audio spectrogram of call of Pale-legged Leaf Warbler.

Pale-legged Leaf Warbler, call, Magic Parking Lot, 4 Sept. 2017 (00:41; 7.9 MB)

Audio spectrogram of call of Pale-legged Leaf Warbler.

Pale-legged Leaf Warbler, call, Magic Parking Lot, 4 Sept. 2017 (00:10; 2 MB)

Audio spectrogram of call of Pale-legged Leaf Warbler.

Pale-legged Leaf Warbler, call, Magic Parking Lot, 4 Sept. 2017 (00:01; 332 KB)

Audio spectrogram of call of Pale-legged Leaf Warbler.

Featured image: Pale-legged/Sakhalin Leaf Warbler, Yangkou, Rudong, Jiangsu, 1 May 2014. Photo by Craig Brelsford. Some of the salient characteristics of Pale-Sak are pointed out. Separating Pale-legged from Sakhalin on the basis of plumage and bare parts is not possible; because this bird was neither singing nor calling, it cannot be determined to which of the two species it belongs.

Separating Pale-legged & Sakhalin Leaf Warbler on Call

Editor’s note: In the photo above, a Pale-legged Leaf Warbler emits its characteristic “tink” call in Microforest 4, Cape Nanhui, Pudong, 27 Aug. 2017. The tink call of Pale-legged is appreciably higher-pitched than that of Sakhalin Leaf Warbler. Distinguishing the two calls is the subject of this post. — Craig Brelsford

Last September, in “Pale-legged Leaf Warbler & the Shanghai Big 5,” I asserted that “Pale-legged Leaf Warbler is safely separable from Sakhalin Leaf Warbler only by song.” I was wrong. Call as well as song is a reliable separator. In this post, I am going to tell you how I arrived at this insight, and I will show you how you too can achieve clear, indisputable ticks of these tricky species through call alone.

Experts since at least as far back as 1989 have been arguing that Pale-legged Leaf Warbler Phylloscopus tenellipes and Sakhalin Leaf Warbler P. borealoides are separable not only by their distinctive songs but also by their calls. Thailand-based birder and shanghaibirding.com contributor Phil Round is among those making that argument. Round and his co-authors write: “[T]he call of P. tenellipes is markedly higher in frequency than that of P. borealoides” (Round et al., “Addition of Kamchatka Leaf Warbler Phylloscopus examinandus and Sakhalin Leaf Warbler P. borealoides to Thailand’s Avifauna,” downloadable through shanghaibirding.com).

If your ear is good, or even if your ear is just average and you have a sound-recorder, then you too can appreciate the higher frequency of the call of Pale-legged. A sound-recorder is very important, because if you upload your recordings to databases such as eBird and the Macaulay Library, then you will be able to “see” the sound in the audio spectrogram.

Our first exhibit is the spectrogram of a call I sound-recorded of Sakhalin Leaf Warbler on 8 May 2016 in Cape Nanhui’s Microforest 4 (30.953225, 121.959083). The frequency is 4.8 kilohertz, a number that matches closely the frequency of Sakhalin calls on xeno-canto.org.*

Audio spectrogram of call of Sakhalin Leaf Warbler.

Here is the sound-recording:

Sakhalin Leaf Warbler, call, Microforest 4 (30.953225, 121.959083), 8 May 2016 (00:15; 1 MB)

Now consider the spectrograms and sound-recordings of Pale-legged Leaf Warbler below. The spectrogram immediately below was recorded by me on 10 June 2016 in my wife Elaine Du’s hometown of Boli, Heilongjiang, part of the breeding range of Pale-legged Leaf Warbler. The call (here a grace note) and song both clock in at about 6 kHz, a frequency a full 25 percent higher than the call of Sakhalin Leaf Warbler and, as with Sakhalin, consistent with the frequencies of Pale-legged calls on xeno-canto.org.

Audio spectrogram of call plus song of Pale-legged Leaf Warbler.

Here is the sound-recording:

Pale-legged Leaf Warbler, call and song, Xidaquan National Forest (45.727751, 130.317316), Boli, Heilongjiang, 10 June 2016 (01:59; 6 MB)

The spectrogram below is of a brief sound-recording I made in Microforest 4 this past Sunday. The song element of this passage migrant is absent (though note that I have heard Pale-legged and Sakhalin singing in Shanghai in spring). The call has a frequency of 5.9 kHz and clearly belongs to Pale-legged Leaf Warbler.

Audio spectrogram of call of Pale-legged Leaf Warbler.

The sound-recording:

Pale-legged Leaf Warbler, call, Microforest 4 (30.953225, 121.959083), 27 Aug. 2017 (00:01; 193 KB)

Why should you care about all this? Because prepared birders have a chance to get solid ticks of “Pale-Saks” that are merely calling and not necessarily singing. If you hear a Pale-Sak calling and trust your ear (or better yet, sound-record the call and later analyze the spectrogram), then you may be able to go beyond the safe, boring record of “Pale-legged/Sakhalin Leaf Warbler” to a more satisfying full tick.

Pale-legged Leaf Warbler Phylloscopus tenellipes pumping its tail vigorously while remaining otherwise motionless and while standing (as is its wont) on a thick branch (top panels); and a second individual making its high-pitched "tink" call (bottom panels). Microforest 4 (30.953225, 121.959083, top panels) and Microforest 1 (30.923889, 121.971635, bottom panels), Cape Nanhui, Pudong, Shanghai, China, 27 Aug. 2017.
Pale-legged Leaf Warbler Phylloscopus tenellipes performing typical behaviors. Top panels: pumping tail vigorously while remaining otherwise motionless on a sturdy branch. Bottom panels: making the high-pitched ‘tink’ call, again on a thick branch. Microforest 4 (30.953225, 121.959083, top panels) and Microforest 1 (30.923889, 121.971635, bottom panels), Cape Nanhui, 27 Aug. 2017. (Craig Brelsford)

Accurate, plentiful records from Shanghai will help researchers such as Round get a clearer picture of the movements and population of these understudied species. As Round et al. write: “Increased sampling of migrants may also resolve the differences in timing of passage between P. examinandus and P. borealis on the one hand, and P. borealoides and P. tenellipes on the other” (“Addition”; hyperlink mine).

My trusty Olympus DM-650 sound recorder. In May, the height of migration season, my sound recorder is like the American Express card: 'Don't Leave Home Without It!'
My Olympus DM-650

What’s more, you do not need to spend much or even know much to record good audio. My Olympus DM-650 costs less than US$250. I have no microphone other than the one built into my pocket recorder, I possess no parabola, and I use no editing software. My editing is limited to snipping off the unusable beginnings and endings of my sound-recordings, which I record in lossless 48kHz .wav. The very scientific-looking spectrograms displayed in this post are generated automatically by eBird and Macaulay.

In Shanghai in 2017, important facts about common birds such as Pale-legged Leaf Warbler and Sakhalin Leaf Warbler remain unknown. This ornithological semi-wilderness is both difficult and exciting. If we rise to the challenge and become better birders, then we will make new discoveries and blaze a trail of knowledge for future birders to follow.

* Audio spectrograms are available for every sound-recording on xeno-canto.org. On the unique page created for each recording, find the section “Actions” and click “Download full-length sonogram.”

GUEST POST: Home to Shanghai (Plus a Jaunt to Fujian)

Editor’s note: Daniel Bengtsson (the tall guy next to me) is a former Shanghai resident, a frequent visitor to Earth’s Greatest City, and an avid birder. Daniel left his mark on Shanghai birding with his Century Park All-time Bird List, which he began compiling in 2008. The list stands at 135 species, almost all of them recorded first by Daniel, and is the best record ever made of the birds of a major Shanghai park.

In this guest post, Daniel’s first for shanghaibirding.com, Daniel discusses the birding side of his latest trip to China. He introduces us to two important locations in Fujian: Ziyun Cun, a forest site good for Cabot’s Tragopan, and the Minjiang estuary, breeding area of the critically endangered Chinese Crested Tern. With Daniel’s piece, plus my work on Emeifeng, Shanghai birders have a growing list of resources with which to plan their own Fujian trip. — Craig Brelsford

Home to Shanghai (Plus a Jaunt to Fujian)
© 2017 by Daniel Bengtsson
for shanghaibirding.com

As I spent more than two years in Shanghai over a five-year period (2006-2010), and since Shanghai is the birthplace of my wife and daughter, this huge city will always be my second home–a bit unlikely, perhaps, considering I was raised in the Swedish countryside.

My daughter is now 8, which means that we are limited to Christmas and summer breaks to visit the Shanghainese side of our family. We did our latest summer trip this past June and July.

Any time I’m in Shanghai, I visit Century Park, my “home spot” which I birded more than 50 times back in 2008. This past summer, I birded the park twice, on 23 and 29 June.

In contrast to other parts of Shanghai, Century Park has undergone little change over the years. This time, however, I noticed that Oriental Magpie-Robin had moved in. Other records of interest were singing Indian Cuckoo (2 birds seen), Eurasian Hoopoe with 2 fledged chicks, and Asian Brown Flycatcher (difficult to know whether it had already been to the breeding grounds and returned south or whether it had been delayed and was on its way north).

To add more birding flavor to the visit, I asked my wife and daughter to do a family-plus-birding trip with me to Fujian. On 5 July we flew from Pudong Airport to Sanming in western Fujian. We were picked up and driven to Ziyun Cun (紫云村, 26.359541, 117.492287). Like Emeifeng 80 km to the west, Ziyun Cun, elev. 800 m, lies in hilly, thickly forested, sparsely populated country. The peaceful village of 1,000 inhabitants was a welcome contrast to hot and humid Shanghai.

We stayed in a small family hotel which offered nice rooms and fresh, self-produced food at a very reasonable price. Both driver and hotel were arranged by birder Xiao Yang (小杨, +86 158-5982-8858). His parents run the hotel.

Cabot's Tragopan (Daniel Bengtsson)
Cabot’s Tragopan often appears at specially constructed photographic blinds around Ziyun Cun. (Daniel Bengtsson)

Among birders and photographers, Ziyun Cun is well-known for the temple on one of the nearby hilltops, often providing both Cabot’s Tragopan and Elliot’s Pheasant. Although Elliot’s Pheasant did not show during the two days I spent in the area, I got fine views of the tragopan as well as of Silver Pheasant and Chinese Bamboo Partridge.

Bird activity was low, and it was obvious that it was long gone into the breeding season. Though birds were calling little, I did manage to hear White-necklaced Partridge, Chinese Barbet, and Grey-sided Scimitar Babbler. Bay Woodpecker and Rufous Woodpecker showed nicely.

Night birds were more active. By walking from the village to the temple (1.5 km) before dawn, I heard Collared Scops Owl, Oriental Scops Owl, Collared Owlet, Asian Barred Owlet, and Grey Nightjar.

For 50 RMB another driver took us to the temple by car. This was a good deal when bringing my wife and daughter, since they would not have been too happy walking the steep track from the paved road up to the temple. Alongside the temple track, a stairway leads down to a different side of the hill. This side has better forest, and most of the birds were here.

Silver Pheasant (Daniel Bengtsson)
Silver Pheasant Lophura nycthemera occurs in Southeast Asia and south China. The race at Ziyun Cun, fokiensis, is the northernmost subspecies. (Daniel Bengtsson)

On the last morning, Xiao Yang’s father took me to a private hide at the base of the hill, where the better forest begins. Apparently this is too low for Elliot’s Pheasant, but it is reliable for Silver Pheasant (and sometimes Cabot’s Tragopan). The deal was that I would pay 100 RMB if I got to photograph either the pheasant or tragopan. (I recommend paying anyway, since this is a good way of supporting ecotourism!) The same deal goes for the hide at the temple.

After two nights in Ziyun Cun, we were driven back to Sanming. We were dropped off at the train station and took the high-speed train to Fuzhou.

White-faced Plover. (Daniel Bengtsson)
White-faced Plover Charadrius (alexandrinus) dealbatus, worn male, Minjiang estuary. Note the white lores and black spot just in front of the eye. Other characters, perhaps less obvious in this picture, and in comparison to other races of Kentish Plover, are larger size, blunter bill, more extensively white forehead, reduced black on crown, brighter and paler upperparts, reduced black lateral breast patches, rufous-brown of crown not extending onto nape, more white in wing bar, and paler and longer legs. Look for White-faced Plover in sandy areas and Kentish Plover along muddy shorelines. (Daniel Bengtsson)

Two mornings later, on 9 July, through the kind arrangements of the Fujian Bird Watching Society, I was picked up for a two-hour drive to the Minjiang estuary (26.023600, 119.653200). The Minjiang estuary is the only reliable site in mainland China for the critically endangered Chinese Crested Tern, a species whose total world population probably does not exceed 50. The mudflats are also important as a stopover site for many waders, among them the critically endangered Spoon-billed Sandpiper. Another bird of interest to Shanghai-based birders is White-faced Plover Charadrius (alexandrinus) dealbatus, a member of the Kentish Plover clade. At Fuzhou it is probably close to the northern border of its breeding range.

Foreign visitors need a permit to enter the protected area. The fee of 1,000 RMB may seem high, but if it can help protect the mudflats and the birds relying on them for survival, then it is money well-spent.

Chinese Crested Tern breeds on islets in the Taiwan Strait. For bathing and drinking, the terns use the brackish water close to the mouth of the Minjiang River. They don’t come every day, though, and not outside the breeding season, which lasts from April to September. In fact, the rest of our party had tried the previous day without success. On this day, we were lucky to have 1 adult Chinese Crested Tern join the rest of the roosting terns. It stayed for less than an hour before taking off again, swooping down to drink a couple of times then heading for the strait.

Terns of Minjiang estuary. (Daniel Bengtsson)
Roseate Tern in non-breeding plumage, Minjiang estuary. Compared to Common Tern, this bird is slightly larger, has a longer bill, darker legs, crisper black head pattern (similar to non-breeding Whiskered Tern), paler back, and whiter primaries. Also in this picture are Greater Crested Tern, Common Tern, Little Tern, White-winged Tern, Whiskered Tern, and Black-tailed Gull. (Daniel Bengtsson)

Other terns of interest were a couple of briefly visiting Bridled Tern as well as a few Roseate Tern (in both breeding and non-breeding plumages). Along with Common Tern, Little Tern, Greater Crested Tern, Whiskered Tern, and White-winged Tern, it all added up to eight species of terns in one day–a record for me.

The shoreline also provided 9 Black-faced Spoonbill and various species of wader, among them Grey-tailed Tattler, Terek Sandpiper, Great Knot, Red-necked Stint, Sanderling, Ruddy Turnstone, Pacific Golden Plover, and Greater Sand Plover. Some Sanderling and Red-necked Stint were in full breeding plumage, so I guess they had already made it up to the Arctic tundra and back.

Thinking of the amazing journeys these small creatures perform twice a year, and with the rarest of all species of tern in the bag, I strolled pleasantly through the muddy channels (helped by my waterproof sandals and zip-off trousers). The next morning we got on the high-speed train, and four and a half hours later we were back in Shanghai.

Featured image: Daniel Bengtsson and Craig Brelsford pose with their families. L-R: Daniel’s wife, Zhao Qing (赵清); Daniel Bengtsson; Daniel and Qing’s daughter, Linnea; Craig Brelsford; and Craig’s wife, Elaine Du. Shanghai, 2 July 2017.