Happy New Year 2018 to you from shanghaibirding.com!
On this New Year’s Day, I bring you glad tidings: a historic first Shanghai record of Marsh TitPoecile palustris!
The sighting occurred on Christmas Eve at Century Park in Pudong. A pair was foraging in trees and bushes at the edge of a wooded area. (The exact point is by the boardwalk on the western side of the park at 31.215832, 121.541303.) The tits did not appear sluggish or overly tame, as might have been the case had they escaped from a cage.
I originally misidentified the Century Park tits as Willow Tit Poecile montanus stoetzneri. I was thrown off by the large black patch on the chin and throat of the birds, which I took to be strongly suggestive of Willow. In field guides pre-dating the research of Richard K. Broughton, the bibs of Marsh and Willow Tits, in particular their size and shape, are characterized as being important separators of the two species, which are notoriously hard to tell apart.
After my triumphant announcement to the Shanghai Birding WeChat group, member Paul Holt responded, disagreeing with my diagnosis of Willow Tit and cautioning me on an over-reliance on bib, which, Holt wrote, “[doesn’t] hold much water” as a criterion for Marsh-Willow ID. The Century tit, Holt said, “looks like a classic Marsh Tit” (Holt, in litt., 2017). Intrigued, I searched the Web for authorities backing up Holt’s assertions, and I came across the two studies by Broughton.
Broughton’s papers shake the foundations of Marsh-Willow research. Of the several challenges Broughton makes to the received wisdom about Marsh-Willow ID, bib is among the most salient. Books renowned and much relied on, such as the Collins Bird Guide (2009), admit only of “some overlap” in the size and shape of the bibs. Broughton finds “substantial overlap.” Harrap and Quinn state unequivocally that compared to Willow Tit, Marsh has “a smaller and neater black bib” (1995). Broughton says that bib is “variable within both species,” prone to “high subjectivity” on the part of the observer, and greatly dependent on the sex, social rank, and age of the bird. “The bib,” Broughton states flatly, “is not a particularly useful identification feature” (2009).
What, then, is a useful identification feature? In the British and European birds Broughton and his co-authors studied, the most reliable criterion separating non-singing and non-calling Marsh and Willow was a special mark on the bill. The authors found that 98.7% of Marsh Tit and 94.2% of Willow Tit could be identified to species according to the presence (Marsh) or absence (Willow) of a whitish spot on the proximal area of the upper mandible (Broughton et al. 2008).
Here in China, how applicable are Broughton’s findings on the whitish mark? To the best of my knowledge, the applicability of the bill criterion on the East Asian subspecies of Marsh and Willow has not been formally tested. It presumably is highly applicable, and the photos here of Marsh and Willow from the Eastern Palearctic comport with Broughton’s findings from the Western Palearctic.
Examine the four-panel photo above. At top left is Marsh Tit Poecile palustris brevirostris, photographed at Xidaquan, Heilongjiang on 17 Aug. 2015. The whitish bill mark is clearly visible, as it is in Steven Lin’s photo top right of the Century Park Marsh Tit. In the photo bottom left of Willow Tit Poecile montanus baicalensis, taken in Dawucun, Heilongjiang on 23 Jan. 2015, abrasions and reflected light create asymmetrical whitish marks that only an inexperienced observer would take to be the bill mark of a Marsh Tit. In the photo bottom right of “Songar” Tit Poecile montanus affinis, taken in northern Qinghai on 1 Aug. 2016, the bill is unmarked; it is a classic Willow Tit bill.
Broughton’s papers explore other criteria for Marsh-Willow ID, among them the song, “chick-a-dee” call, and juvenile begging call, which have long been known to be distinctive and which Broughton rates as even better indicators of species than bill mark. Broughton also discusses the contrast between the cheek and neck sides in the two species, which like bill mark Broughton calls a highly reliable feature. Both papers are required reading for anyone wanting to get a handle on Marsh-Willow ID, even those of us here on the eastern end of the Palearctic. Indeed, a study using the methods of Broughton on the East Asian forms of Marsh Tit and Willow Tit would be a welcome complement to Broughton’s work and could yield exciting results.
On 22 Jan. 2018 at Century Park, local birder Komatsu Yasuhiko found Marsh Tit. Hiko got these photos.
Broughton, Richard K., Hinsley, Shelley A., & Bellamy, Paul E. (2008) Separation of Marsh Tit Poecile palustris from Willow Tit Poecile montana using a bill criterion. Ringing & Migration, 24:2, pp. 101-103. Available at https://doi.org/10.1080/03078698.2008.9674382 (accessed 1 Jan. 2018).
Harrap, Simon & Quinn, David. Chickadees, Tits, Nuthatches and Treecreepers. Princeton University Press, 1995. Willow Tit, p. 238.
Holt, Paul. Message to Craig Brelsford through Shanghai Birding, a WeChat chat group, 24 Dec. 2017. To join Shanghai Birding, on WeChat send a friend request to Craig Brelsford (WeChat ID: craigbrelsford). Please say that you wish to join Shanghai Birding.
Crested Goshawk has sunk its talons into Shanghai. In the past year, records of the species have come from various locations throughout the city, in all four seasons. This past spring, a pair may have bred at Gongqing Forest Park.
It is remarkable that Crested Goshawk, a species of tropical and subtropical Asia, is even as far north as the Yangtze River. Most field guides show Accipiter trivirgatus indicus, the mainland form, occurring no farther north than Hangzhou. However, members of Shanghai Birding, the WeChat companion to this Web site, have reported Crested Goshawk in Nanjing and Nantong (Jiangsu). Other authorities record Crested Goshawk in Anhui, Henan, and even Beijing.
If the forest-loving goshawk has invaded the coastal, little-wooded, highly urbanized world of Shanghai, then it is not surprising that it would be using urban parks. Some of the parks of Shanghai, such as 102-year-old Zhongshan Park, where I found a pair of Crested Goshawk on 8 Sept., have massive trees and resemble old-growth forests.
Like the avifauna of islands, the birds of urban Shanghai’s green islands live in isolation. Except for stray cats and an occasional Siberian Weasel, urban residents Eurasian Tree Sparrow, Light-vented Bulbul, and Chinese Blackbird have few predators and are abundant.
With the imbalance comes an opportunity for raptors that can tolerate the noise and bustle of Earth’s Largest City. For Crested Goshawk, the pluses of urban living are apparently outweighing the minuses. It has come to feed on the rich store of passerines as well as mammals such as Pallas’s Squirrel.
On 16 May 2017 at Pudong’s Century Park, Shanghai Birding member Xueping Popp captured a Crested Goshawk exploiting the imbalance.
Shanghai Birding member Wāng Jìn Róng (汪进荣) was one of the first birders to record Crested Goshawk in Shanghai. Jìn Róng has seen the species at Zhongshan Park and Gongqing Forest Park as well as on the grounds of the Shanghai Zoo. Jìn Róng took the photo at the top of this post as well as the photos immediately below. All were taken at Zhongshan Park–the photo above this past May, the photos below last December.
The Crested Goshawk below, photographed by Shanghai Birding member Kai Pflug at Cape Nanhui, may have been in transit. Cape Nanhui has little tree cover beyond its famous microforests (where Kai got this photo), and Crested Goshawk is rarely recorded there.
Have you seen Crested Goshawk or other raptors in your city? Tell us your story in the comments below.
The media below offer a clearer picture of the current status in China of Crested Goshawk.
Brelsford, Craig, moderator. Shanghai Birding, a WeChat group. The subject of Crested Goshawk generated discussions with various birders, among them Jiangsu birders Scoter and maidong, who had information about Crested Goshawk in Nanjing and Nantong. Hangzhou birder Cheng Qian reported on the distribution of Crested Goshawk in Zhejiang. Beijing-based member Paul Holt alerted us to scholarship on the changing distribution of Crested Goshawk and shared records of the species from Anhui and Beijing. Guangdong-based member Jonathan Martinez wrote about breeding Crested Goshawk in Hunan.
There are two ways to join Shanghai Birding. First, you need WeChat, the platform on which Shanghai Birding runs. Once you have installed WeChat, friend Craig Brelsford on WeChat (ID: craigbrelsford). State that you wish to join the group.
eBird. 2017. eBird Range Map–Crested Goshawk. eBird: An online database of bird distribution and abundance [Web application]. eBird, Ithaca, New York. (Accessed: Sept. 14, 2017).
The eBird Range Map shows points on the Earth where checklists with Crested Goshawk have been submitted. The map shows Crested Goshawk in Zhejiang, Jiangsu, Anhui, and Henan as well as Shanghai.
Fei, Y.-L., Lei, M., Zhang, Y. and Lu, C.-H. Geographic Distribution Change of Crested Goshawk (Accipiter trivirgatus). Chinese Journal of Zoology 45 (2010): 174–175.
“I have thought a lot about yesterday and can honestly say, it must be one of my all-time ornithological highlights.”
— Dr. Mike May, message to Craig Brelsford, 14 May 2017
Those are the words not of a new birder, but of a highly experienced visiting birder with thousands of birds on his life list who resides in bird-rich Extremadura, Spain.
Birding Pudong’s Cape Nanhui at the height of the spring migration left Mike May open-mouthed. Should anyone be surprised? The most southeasterly point of Shanghai is a world-class birding site.
Mike’s 92-species day, Sat. 13 May 2017, with Beijing-based Swedish birder Jan-Erik Nilsén and me included ultra-rarities such as Orange-headed Thrush as well as Pallas’s Grasshopper Warbler and Lanceolated Warbler. A pair of sub-adult Black-faced Spoonbill were getting by on the ever-shrinking pools at the beleaguered site.
Let me say that again: Of the thousands of birding spots in this vast, mega-diverse nation, the cape 60 km southeast of People’s Square is second only to Baihualing in Yunnan in species noted.
Sound unbelievable? Let me say something even more unbelievable: Not only is this rich spot completely unprotected, with not even a square meter preserved in any legal way; but it is, to the contrary, being actively destroyed, even as I tap out these words.
The backdrop to the work of Mike, Jan-Erik, and me was fleets of bulldozers and backhoes, busy throughout the weekend. They clattered and clanged, and the pumps transferring water into the newly dug canals whirred and chugged.
The pace of transformation is faster than ever now.
“Nanhui is gone,” my partners and I said.
A major ecological area, a place combining ease of access to millions of residents of Earth’s largest city and a favorable position on Earth’s greatest migratory flyway, is being utterly transformed.
While the Cape Nanhui that I have long known falls, huge tracts of adjacent tidal mudflat are being reclaimed, adding dozens of square kilometers to the land area of Cape Nanhui. Birding there in theory could have a future. A Cape Nanhui Nature Reserve could be set up in the new area.
But even as the Cape Nanhui we know falls, no one, to my knowledge, has hastened to reassure conservationists that areas in the newly reclaimed land will be set aside for birds.
In the city-province of Shanghai, which is the size of the U.S. state of Delaware, a few places have indeed been set aside, among them Chongming Dongtan. But those reserves are small, on remote islands far from mainland Shanghai, and practically unreachable by the millions of middle-class Shanghainese who lack a car.
Cape Nanhui, by contrast, is easily reachable from the city. And it is the one place where masses of bird lovers can conveniently get a taste of the grand spectacle that is spring migration along the east coast of the Eurasian supercontinent.
That opportunity is being taken away, not only from the birders alive today, but also from the birders of the future.
THE THRILL OF NANHUI IN MAY
Our agony over the fate of Nanhui was tempered by the joy of birding. Orange-headed Thrush showed up Saturday at the Magic Parking Lot (30.884898, 121.968229). With the two vertical bars on its face, our specimen was either of race melli (breeds Guangdong, etc.) or courtoisi (Anhui).
On Sunday the Magic Parking Lot delivered singing Grey-crowned WarblerSeicercus tephrocephalus, and in Microforest 2 (30.926013, 121.970705) an appearance was made by Alström’s WarblerS. soror. Neither breeds in the region; both are very rare vagrants to Shanghai.
Iron Track (31.003613, 121.907883) gave us singing Yellow-breasted Bunting in full breeding finery and singing Pallas’s Grasshopper Warbler. I captured the latter’s song, rarely heard in Shanghai.
Pallas’s Grasshopper Warbler Locustella certhiola, 13 May 2017, Iron Track (31.003613, 121.907883) (00:13; 2.1 MB)
The Marshy Agricultural Land (30.850707, 121.863662) near Eiffel Tower was highly productive, yielding Lanceolated Warbler, Forest Wagtail, and Striated Heron.
Other highlights from Saturday along the 30-km stretch of coastline:
Shanghai Birding is the WeChat companion to this Web site. Our members include everyone from persons brand-new to birding to some of the most knowledgeable birders in China. We discuss everything from the most common species to the most arcane.
Here is an edited transcript of a recent conversation on Shanghai Birding about the Seicercus warblers at Cape Nanhui:
Paul Holt: Can you post your recording of yesterday’s [14 May 2017] Alström’s Warbler as well please, Craig?
Craig Brelsford: Will post after I get home. Meanwhile, have you assessed the recording I posted yesterday morning? Do you agree it’s Grey-crowned Warbler? Jonathan Martinez, I’d like your view, too!
Craig Brelsford had earlier posted these sound recordings:
Grey-crowned Warbler Seicercus tephrocephalus 1/3, 14 May 2017, Magic Parking Lot (30.884898, 121.968229), Nanhui (00:36; 3 MB)
Grey-crowned Warbler 2/3 (00:49; 3.6 MB)
Grey-crowned Warbler 3/3 (01:08; 4.3 MB)
PH: Yes, Grey-crowned Warbler!
PH: For what it’s worth, while there are probably 30+ records of “golden-spectacled warblers” from coastal Hebei, very, very few have been as well documented as Craig’s and team’s recent Grey-crowned. Many have been photographed but far fewer sound-recorded. Alström’s is so far the only one so far known to breed north of the Qinling Shan (it’s a scarce and very local breeder at two, possibly three, sites in Beijing). Personally I’ve never seen soror in coastal Hebei (nor am I aware of any being sound-recorded there), but I have noted (and sound-recorded) 2 Bianchi’s S. valentini and 1 Martens’s S. omeiensis in coastal Hebei. I understand that the only (?) three coastal Hebei birds that have been captured and had their DNA compared have all been omeiensis. We’re very, very far from ascertaining the true statuses of these Seicercus in our area, but you perhaps should/might see more in Shanghai and coastal Zhejiang. As many of you already know, there are some excellent sound recordings of these on Per’s site.
CB: Great analysis, Paul, and great that you point out the resources on Per’s site. Jan-Erik and I got good sound recordings of the purported soror yesterday, and Charles Wu and I got some good shots, among them images of the outer tail feathers, which definitely had some white in them.
PH: Excellent, Craig. As you know they’ve all got white in their outer tails. Alström’s (aka Plain-tailed) doesn’t have much …
CB: Right, Paul; thanks. The discussion yesterday was one of comparison and degree. How little must the white be in the tail, we were asking ourselves, for a Seicercus to “qualify” as Alström’s/Plain-tailed? Was the white in our photos a little or a lot? We ended up thinking a little, and that and the song we recorded led us to a determination of soror. I’ll post my photos and recordings as soon as I’m home.
PH: Personally, Craig, I find it very difficult to judge the amount and distribution of white on the tails of these Seicercus in the field and think that a good photo with the tail splayed would really be necessary. Even then, the differences are small and subtle. Tricky group!
Jonathan Martinez: Regarding the ID of these Seicercus, I have found that call is by far the easiest way to ID them. They all have a characteristic call. Some of them, like Alström’s or Bianchi’s, are usually quite vocal; others not as much. It requires much more experience or use of sonogram to ID them by song, but a few of them (Alström’s especially) include their call in their song, and some of them (Grey-crowned, Martens’s) include a trill in their song. Others do not (Alström, Bianchi’s). ID-ing them on plumage is, of course, a level up.
Here is the voice of the Alström’s Warbler that I recorded with my Olympus DM-650 pocket recorder:
Editor’s note: The photo above shows Hooded Crane flying above fields at Nanhui on 12 Nov. 2016. Before our sighting, Grus monacha had never been recorded on the Shanghai Peninsula. Each year, about 100 Hooded Crane overwinter on eastern Chongming Island, 60 km north of Nanhui at the mouth of the Yangtze River.
Elaine Du and I birded three of the four days between Sat. 12 Nov. and Tues. 15 Nov. 2016. We noted 105 species. On Saturday we had the first-ever record in Nanhui of Hooded Crane. We also found Baikal Teal on Saturday as well as Greater White-fronted Goose, Tundra Swan, and Jack Snipe. Sunday was also spent at the coastal site in Pudong and gave us calling Brown-cheeked Rail as well as Hair-crested Drongo and late Rufous-tailed Robin. Other weekend Nanhui records were EndangeredBlack-faced Spoonbill holding steady at the defunct nature reserve (30.920500, 121.973167), Amur Falcon feasting on gnats small enough for leaf warblers, an uncommon Shanghai record of Water Pipit, and two more sightings of EndangeredYellow-breasted Bunting at its increasingly reliable site (30.850707, 121.863662). On Tuesday at Shanghai’s Zhongshan Park (31.221888, 121.420066) we had a very late Narcissus Flycatcher.
ELAINE’S FEAT OF BIRDING
The flyby sighting of Hooded Crane was Elaine’s finest hour. Michael Grunwell was in the back seat and, blinded by the roof, would have never seen the crane. I was busy driving along a very uncertain dirt track. We see so many Grey Heron at Nanhui, and it is so easy to disregard them, and sure enough two of the three birds flying together were Grey Heron. But one was not, and Elaine caught it.
Elaine got her first pair of binoculars in 2013 and is now making big discoveries. “You’ve come a long way, baby!”
Thanks to Shanghai birder Xiao Cao for his knowledge of species histories in Shanghai. It was he who told us that our Hooded Crane was a first record for mainland Shanghai.
JACK SNIPE AT IRON TRACK
The experience with Jack Snipe occurred Saturday near dark at Iron Track (31.003613, 121.907883). Our partner Michael Grunwell, Elaine, and I were looking for Brown-cheeked Rail. The snipe sneezed when flushed, flew to a towering height in a tighter formation than is typical in Common Snipe, and after all the fuss ended up landing only 150 m from where they had started.
When the snipe began their flight, I figured they were Common and continued looking for rails. Then I heard Michael cry out, “Possible Jack!” The snipe flew directly over us. The bill was noticeably shorter than the bill of the Common I have come to know. Elaine too saw the short bill.
The three of us feel confident in our record of Jack Snipe and urge others to be on the lookout for this species. Get pictures if you can.
Iron Track is part of the extensive reed-bed habitat lining the Dazhi River (大治河). It provides excellent habitat for Chinese Pond Heron, White-breasted Waterhen, Brown-cheeked Rail (and possibly Water Rail), wintering Bluethroat, and wintering Jack Snipe. Reed Parrotbill is resident.
The beds are on either side of the river, are unlikely to be developed, and are in good condition. They are a remnant of the habitat that used to cover the entire area.
YELLOW-BREASTED BUNTING IN SHANGHAI
As reported above, on Saturday with Michael and yet again on Sunday our site near Luchao delivered Yellow-breasted Bunting. The site is at 30.850694, 121.863667. We are now five-for-five in sightings of Yellow-breasted Bunting since our Nov. 5 discovery of the species there.
It will be interesting to see how long into the winter the Yellow-breasted Bunting remain. I hope they stay awhile, because it is unlikely any of the locals will catch ’n’ roast ’em. (The greatest factor in the endangerment of Emberiza aureola is massive poaching of the species for snacks in south China.)
Recently the site has yielded Black-browed Reed Warbler and Chestnut-eared Bunting and a late record of Barn Swallow. An un-ID’d rail has been spotted twice in the area.
To get to the site, from Luchao drive 1.5 km north from the bend in the road north of the canal, where the road begins to run parallel with the sea. Pull onto the unpaved track and park on the bridge of white cement. The buntings seem to be concentrated a few dozen meters south, near the place where picnickers dumped a big load of trash. Be on the lookout for individuals flying into the narrow reed bed after foraging runs in the adjacent rice paddies.
ID’ING BROWN-CHEEKED RAIL ON CALL
On Sunday at Nanhui we positively identified 2 Brown-cheeked Rail on call. Here is the recording I made (00:28; 2.7 MB):
The pitch matches closely the pitch in the recordings by Anon Torimi of rails assigned to Rallus indicus. I downloaded Torimi’s recordings from xeno-canto.org. I invite Shanghai birders to do the same. Get to know the sounds of both R. indicus and the extralimital R. aquaticus and start adding these species to your own Shanghai lists.
AMUR FALCON CATCHING GNATS
On Saturday we were amazed to see Amur Falcon catching flies with their talons. We had five near Big Bend (31.000321, 121.938074). In top left of the three-panel photo above, the falcon has spotted its prey and is accelerating toward it. In bottom left, the gnat is visible as the falcon zeroes in. At right, the falcon raises its talons for its tiny prey.
The instinct to use its talons is inefficient in this case and shows that Amur Falcon has evolved to hunt larger game. Smaller aerialists such as swifts, nightjars, swallows, and flycatchers snatch up their prey directly with the mouth.
PREACHING THE GOSPEL OF CONSERVATIONISM
I saw the car with lettering saying “Pudong TV” and waved the journalists over. I told them I had something they might want to hear. Echoing my recent post Save Nanhui, I told the pair that Shanghai can have it all. It can be a world financial hub and China’s greatest metropolis and be a green city. It can follow Hong Kong and Singapore and develop a world-class urban wetland reserve easily accessible to nature lovers without their own car. Nanhui’s old wetland, I said, pointing to the defunct reserve behind us, could be the site of such a reserve.
As I talked, a small crowd gathered. Most seemed supportive of my ideas. I was not surprised. A world-class wetland at Nanhui is a basic conservationist idea, and basic conservationist ideas have broad appeal.
The flycatcher was attracted by mealworms speared by photographers onto a soft steel wire. The wire was hung from a branch, enticing the flycatcher to hover to snatch the bait. The bird was appearing every 10 minutes.
I expressed concern but did not feel the need to be critical or intervene. The photographers obviously liked the flycatcher, did not think that they were harming it, and were enjoying themselves immensely.
I watched the flycatcher attack the mealworms. I think it unlikely that the wire would harm the bird. The bigger problem may be that the free protein will keep the bird here an unnaturally long time. A passage migrant through Earth’s largest city, Narcissus Flycatcher should be in Borneo by now.
INTERESTING WECHAT EXCHANGE ON ARCTIC WARBLER
Shanghai Birding is the WeChat companion to shanghaibirding.com. In it, we exchange real-time reports and engage in discussions about birding in Shanghai and all China.
A discussion on 10 Nov. about Arctic Warbler showed the utility to birders of social media in general and Shanghai Birding in particular. Members Jonathan Martinez (based in Shenzhen) and Paul Holt (based in Beijing) shared their knowledge about Arctic Warbler and its sister species. In so doing, they shed light on the situation, still very imperfectly understood, of the Arctic-type complex in Shanghai.
Holt led off:
Paul Holt (PH): I see from a recent posting that @李伟 photographed an Arctic Warbler at Nanhui on the 28 October. Great images! Isn’t that extremely late? The latest ever Beijing record’s over two weeks earlier than that.
I then posted a long list of my Arctic-type records from autumn 2014 and autumn 2015. In the list, I bunched together all members of the Arctic Warbler Complex (Arctic Warbler Phylloscopus borealis borealis and P. b. kennicotti, Kamchatka Leaf Warbler P. examinandus, and Japanese Leaf Warbler P. xanthodryas). I list all three species because, although it is presumed that the vast majority of spring and autumn records in Shanghai pertain to borealis, it is far from certain what the proportions are. (Arctic Warbler and its sister species are nearly impossible to separate on morphology but are distinguishable by voice.)
The latest autumn record I had of an Arctic-type warbler was 24 Oct. (2015).
Holt wrote back:
PH: Thanks @Craig (大山雀) Unless I’m missing something 28 October is later than any of the records you cite (but just by four days). Could it be that the Nanhui sighting is Shanghai’s latest ever? Also it’s interesting that you mention all three species. Have any of your region’s Arctic-types been identified to a species other than borealis?
Craig Brelsford (CB): @Paul Holt I have not recorded anything other than borealis around Shanghai. (All confirmed borealis records are of individuals singing in spring.) I also suspect that a record of xanthodryas is next to impossible in Shanghai. I am aware that citing all three names is not a perfect solution. I list all three species because I believe information is insufficient. No one knows how many Arctic-type in Shanghai are borealis and how many examinandus. Very basic facts about the species in east-central China are unclear. Maybe someday studies will confirm that an Arctic-type in east-central China is borealis, with a probability of 99%. In that case, I would probably assign any silent Arctic-type I saw to borealis. Do you have any suggestions?
A few minutes later, I added:
CB: Just remembered that Michael Grunwell, Elaine Du, and I had Arctic-type this past Sat. 5 Nov. We got a good look at the bird, too. October was a warm, wet month in Shanghai, and the entire fall migration season seems to be late a week or two. Would others here agree?
PH: I’ve never seen xanthodryas in mainland China, have only ever encountered two examinandus (which were the first records for Liaoning & Hebei. Both sound recorded) here & have too little to go on I’m afraid @Craig (大山雀). Personally I log everything as Arctic Warbler by default, though that’s far from perfect. Until more of us work on this awkward group & make an effort to sound-record them, it’ll be a long time yet before a truer picture of their patterns of occurrence emerges. Cracking late record last weekend @Craig (大山雀). Surely that must be a good candidate for being the latest ever.
CB: @Paul Holt Maybe for simplicity’s sake I should log everything as Arctic. I have hesitated because I dislike speculation, and besides your very reliable records from up north I have little else to go on.
At this Martinez came in with his south-China perspective:
Jonathan Martinez (JM): I’ve heard xanthodryas on Fujian coast in early May and had a bird caught in October at Xitou identified as xanthodryas by DNA on tail feathers among about 15 borealis. I found an examinandus in central Guangxi in September, first suspected by call on a bird wave and clearly identified with call a few days later. I suspect examinandus is not a coastal migrant and probably goes through mainland China. I think still the only species recorded in Hong Kong is borealis, despite many looking for these.
CB: Thanks! With a confirmed xanthodryas in Fujian and examinandus only “suspected” not to use the Chinese coast, I’ll keep my clunky three-species listing. Arctic-type Warbler in China is a subject crying out for more research.
Did you know that the birding area at Nanhui is a cape? This is an aspect of Nanhui that perhaps requires more discussion. The 30-km stretch of coastline is the southeastern-most point of Pudong as well as of the entire city-province of Shanghai.
Cape Nanhui (I like the ring of that) juts out between the mouth of the Yangtze River and Hangzhou Bay. The cape aspect of Nanhui makes it even more valuable to migrating birds than regular coastline. Nanhui is a stepping stone, catching birds that have just made a non-stop crossing of the mouth of the Yangtze River (in fall) or a non-stop crossing of Hangzhou Bay (in spring).
I also find it interesting that one never hears of the “Shanghai Peninsula.” It’s a term with explanatory power. Although rather nubby, the Shanghai Peninsula is clearly a promontory between the mouth of the Yangtze River and Hangzhou Bay. Cape Nanhui is the tip of the promontory.
If conservationists talk about a nature reserve for “Cape Nanhui,” the tip of the “Shanghai Peninsula,” then maybe they will have a stronger case.
A NOTE FROM TOMMY PEDERSEN
Tommy Pedersen is a pilot with Emirates. He is Norwegian and has been based in Dubai for many years. An accomplished birder, Tommy created uaebirding.com. This outstanding site is the best introduction to birding in the United Arab Emirates and the Arabian Peninsula.
Tommy recently sent a message to shanghaibirding.com:
I had a work flight to Shanghai 9-11 November 2016, and following Craig’s excellent site, I decided to visit Nanhui.
I booked a room at Holiday Inn Express (no English spoken, cold and drafty rooms), close to the Magic Parking Lot and Nanhui Nature Reserve. Two targets: Saunders’s Gull and Reed Parrotbill.
On Day 1, 9 November, I was extremely lucky and bumped into Craig and Elaine with Erica, who took me to the nature reserve. We had a jolly good time (at least I was), and Saunders’s Gulls were soon spotted (http://ebird.org/ebird/view/checklist/S32503941).
Gadwall Anas strepera 8
Eurasian Wigeon A. penelope 30
Mallard A. platyrhynchos 8
Eastern Spot-billed Duck A. zonorhyncha 150
Northern Shoveler A. clypeata 2
Tufted Duck Aythya fuligula 1
Common Pheasant Phasianus colchicus 4
Little Grebe Tachybaptus ruficollis 25
Great Cormorant Eurasian Phalacrocorax carbo 40
Eurasian Bittern Botaurus stellaris 1
Grey Heron Ardea cinerea 100
Great Egret A. alba 30
Little Egret Egretta garzetta 60
Eastern Cattle Egret Bubulcus coromandus 1
Black-crowned Night Heron Nycticorax nycticorax 1
Eurasian Spoonbill Platalea leucorodia 17
Black-faced Spoonbill P. minor 15
Eurasian/Black-faced Spoonbill P. leucorodia/minor 30
Brown-cheeked Rail Rallus indicus 2
Water/Brown-cheeked Rail R. aquaticus/indicus 3
White-breasted Waterhen Amaurornis phoenicurus 1
Common Moorhen Gallinula chloropus 3
Eurasian Coot Fulica atra 4
Pied Avocet Recurvirostra avosetta 3
Kentish Plover Charadrius alexandrinus 1
Common Snipe Gallinago gallinago 14
Common Sandpiper Actitis hypoleucos 1
Green Sandpiper Tringa ochropus 2
Spotted Redshank T. erythropus 80
Common Greenshank T. nebularia 5
Feral Pigeon (Rock Dove) Columba livia 1
Oriental Turtle Dove Streptopelia orientalis 3
Spotted Dove S. chinensis 3
Common Kestrel Falco tinnunculus 3
Amur Falcon F. amurensis 1
Peregrine Falcon F. peregrinus 1 Falco sp. 2
Long-tailed Shrike Lanius schach 40
Hair-crested Drongo Dicrurus hottentottus 1
Eurasian/Oriental Skylark Alauda arvensis/gulgula 1 singing
Barn Swallow Hirundo rustica 8
Yellow-bellied Tit Periparus venustulus 4
Chinese Penduline Tit Remiz consobrinus 20
Light-vented Bulbul Pycnonotus sinensis 25
Brown-flanked Bush Warbler Horornis fortipes 1
Pallas’s Leaf Warbler Phylloscopus proregulus 18
Yellow-browed Warbler P. inornatus 4
Black-browed Reed Warbler Acrocephalus bistrigiceps 1
Plain Prinia Prinia inornata 4
Reed Parrotbill Paradoxornis heudei 18
Vinous-throated Parrotbill Sinosuthora webbiana 35
Japanese White-eye Zosterops japonicus 2
Crested Myna Acridotheres cristatellus 10
White’s Thrush Zoothera aurea 7
Japanese Thrush Turdus cardis 5
Eyebrowed Thrush T. obscurus 2
Pale Thrush T. pallidus 6
Dusky Thrush T. eunomus 4
Rufous-tailed Robin Larvivora sibilans 1
Red-flanked Bluetail Tarsiger cyanurus 19
Daurian Redstart Phoenicurus auroreus 18
Stejneger’s Stonechat Saxicola stejnegeri 2
Eurasian Tree Sparrow Passer montanus 150
Eastern Yellow Wagtail Motacilla tschutschensis taivana 8
White Wagtail M. alba 14
Buff-bellied Pipit Anthus rubescens 80
Chestnut-eared Bunting Emberiza fucata 7
Rustic Bunting E. rustica 2
Yellow-throated Bunting E. elegans 3
Yellow-breasted Bunting E. aureola 3
Black-faced Bunting E. spodocephala 14
Pallas’s Reed Bunting E. pallasi 16
List 1 of 1 for Tues. 15 Nov. 2016 (16 species). Zhongshan Park (Zhōngshān Gōngyuán [中山公园]; 31.221888, 121.420066), urban green space in Changning District, Shanghai. Partly cloudy. Low 12° C, high 17° C. Humidity 62%. Visibility 10 km. Wind NE 23 km/h. PM2.5 AQI: 93 (moderate). Sunrise 06:22, sunset 16:55. TUE 15 NOV 2016 13:00-15:00. Craig Brelsford & Elaine Du.
Spotted Dove Streptopelia chinensis 5
Common Kingfisher Alcedo atthis 1
Long-tailed Shrike Lanius schach 2
Japanese Tit Parus minor 2
Light-vented Bulbul Pycnonotus sinensis 30
Pallas’s Leaf Warbler Phylloscopus proregulus 4
Yellow-browed Warbler P. inornatus 1
Chinese Hwamei Garrulax canorus 3
Grey-backed Thrush Turdus hortulorum 1
Chinese Blackbird T. mandarinus 4
Eyebrowed Thrush T. obscurus 3
Oriental Magpie-Robin Copsychus saularis 3
Red-flanked Bluetail Tarsiger cyanurus 4
Narcissus Flycatcher Ficedula narcissina 1
Eurasian Tree Sparrow Passer montanus 20
White Wagtail Motacilla alba leucopsis 2
Editor’s note: Each spring and autumn, Ashy Drongo Dicrurus leucophaeus migrates through Shanghai. Race leucogenis breeds close to the Shanghai region and is the subspecies most commonly seen in Shanghai. The recent appearance at Nanhui of ssp. salangensis (pictured above) raises the question of exactly how numerous that central Chinese subspecies is on the Shanghai coast.
How dark was that migrating Ashy Drongo you just saw? You may want to pay attention, because the dark-grey central Chinese ssp. salangensis has been spotted at Nanhui, the coastal birding site in Shanghai. In this post, I lay out the identification criteria for salangensis and the paler, more common ssp. leucogenis. My theory is that salangensis appears at some higher rate in Shanghai than has historically been recorded, which until recently has been not at all. An opportunity to fine-tune our understanding awaits us!
SEPARATING THE SUBSPECIES
Ashy Drongo Dicrurus leucophaeus comprises 15 races, of which two are known in the Shanghai region: D. l. leucogenis and D. l. salangensis. D. l. leucogenis, the pale eastern race, is the more common migrant. D. l. salangensis is the darker race and is a vagrant to Shanghai.
A classic leucogenis (panels 1, 2b, 3b) is easy to distinguish from salangensis (2a, 4). A typical leucogenis is pale grey and shows a large white oval patch around the eye. D. l. salangensis is much darker, and its facial patch is reduced and less well defined. Both have a red iris.
Intermediate forms (3a) are trickier. They may be purebreds showing random color variation or hybrids. The breeding ranges of leucogenis and salangensis partly overlap, with salangensis breeding in south-central China (mainly or exclusively south of the Yangtze River) and leucogenis breeding over a broad swath of eastern and central China from Sichuan east to Shandong and as far south as Guangdong.
Many thanks to Shanghai Birding member Jonathan Martinez. Martinez lives in Shenzhen and is an expert on the birds of southeast China. He was the first to point out that the photos of Ashy Drongo being posted on the Shanghai Birding WeChat group were of salangensis. He also was instrumental in our identification of the melanistic form of Long-tailed Shrike, discussed below. Thanks also to Paul Holt, who offered his opinion on the breeding range of leucogenis, and to Kai Pflug, for yet another useful photo.
103 SPECIES ON 15-16 OCT. 2016
Partnering with visiting U.S. birder Bryce Harrison, Elaine Du and I noted 103 species over the weekend of Sat. 15 Oct. and Sun. 16 Oct. 2016. We covered the three main birding areas in Shanghai: Nanhui, eastern Chongming Island, and the reclaimed areas of Hengsha Island.
At Nanhui on Saturday we found Nordmann’s Greenshank, 24 Black-faced Spoonbill, 4 Mandarin Duck, and the Ashy Drongo. On Sunday on Hengsha we found a dark-morph Long-tailed Shrike, rare in Shanghai.
Nanhui also gave us Japanese Quail, Purple Heron, 6 Eurasian Spoonbill, 6 Black-tailed Godwit, and a Eurasian Woodcock at the Magic GPS Point (30.880563, 121.964551). We must have stumbled blindly past the well-camouflaged woodcock half a dozen times before finally flushing it. Also 4 Japanese Paradise Flycatcher, 2 Asian Stubtail, 2 first-of-season Red-flanked Bluetail, 2 Japanese Thrush, and 3 Eyebrowed Thrush.
Hengsha yielded Striated Heron, Pied Harrier, Eastern Marsh Harrier, Hen Harrier, Merlin, 9 Black-browed Reed Warbler, and our season’s first taivanaEastern Yellow Wagtail.
We found Eurasian Wryneck at Nanhui and on Hengsha and Bull-headed Shrike and Yellow-bellied Tit at Nanhui and on Chongming.
Nordmann’s Greenshank was roosting at nearly the same spot (30.920549, 121.963247) as a month ago. The endangered bird was among many Common Greenshank, allowing us to appreciate the former’s more obviously bi-colored bill, shorter legs, and more hunched appearance. The bird clearly stood out from among its Common cousins. For more on Nordmann’s ID, please see our Sept. 18 post, Your Handy-Dandy Nordmann’s Greenshank ID Primer.
The Black-faced Spoonbill were just a few hundred meters from the Nordmann’s in the defunct nature reserve. Poignantly, the spoonbills were roosting near the decrepit old sign introducing Platalea minor to the world.
UPDATES TO RECENT POSTS
My post of 26 Sept. 2016, “Pale-legged Leaf Warbler & the Shanghai Big 5,” has attracted the attention of Philip Round, one of the world’s foremost experts on Asian leaf warblers. I have written an addendum with an excerpt from an illuminating e-mail sent to me by Dr. Round. In it, he talks about the difficulties, some insurmountable, some not, in distinguishing Pale-legged Leaf Warbler from Sakhalin Leaf Warbler. In the republished post, scroll down to the section headed “UPDATE: 19 OCT. 2016.”
I have added two photos to the post of 10 Oct. 2016, “ID Workshop: Paradise Flycatchers.” The photos show a female Amur Paradise Flycatcher on its breeding grounds in Nanjing, Jiangsu. You now have another opportunity to study the photos of a confirmed Amur female. Compare that Amur with the migrating paradise flycatchers you find in the Shanghai area for an airtight ID. Scroll down to “UPDATE: 18 OCT. 2016.”
Birds noted around Pudong Nanhui Dongtan Wetland (Pǔdōng Nánhuì Dōngtān Shīdì [浦东南汇东滩湿地]; 30.920507, 121.973159), Pudong, Shanghai, China. Partly cloudy. Low 19° C, high 23° C. Humidity 73%. Visibility: 10 km. Wind E 23 km/h. PM2.5 AQI: 59 (moderate). Sunrise 05:58, sunset 17:21. SAT 15 OCT 2016 05:30-17:00. Craig Brelsford, Elaine Du, & Bryce Harrison.
Mandarin Duck Aix galericulata 4
Garganey Spatula querquedula 5
Eurasian Wigeon Mareca penelope 8
Eurasian Teal Anas crecca 60
Japanese Quail Coturnix japonica 1
Common Pheasant Phasianus colchicus 3
Little Grebe Tachybaptus ruficollis 80
Grey Heron Ardea cinerea 50
Purple Heron A. purpurea 1
Great Egret A. alba 15
Intermediate Egret A. intermedia 9
Little Egret Egretta garzetta 330
Chinese Pond Heron Ardeola bacchus 1
Black-crowned Night Heron Nycticorax nycticorax 32
Eurasian Spoonbill Platalea leucorodia 6
Black-faced Spoonbill P. minor 24
Western Osprey Pandion haliaetus 1
Eastern Marsh Harrier Circus spilonotus 1
Common Moorhen Gallinula chloropus 2
Eurasian Coot Fulica atra 30
Black-winged Stilt Himantopus himantopus 2
Grey Plover Pluvialis squatarola 21
Kentish Plover Charadrius alexandrinus 15
Black-tailed Godwit Limosa limosa 6
Red-necked Stint Calidris ruficollis 10
Dunlin C. alpina 20
Common Snipe Gallinago gallinago 2
Eurasian Woodcock Scolopax rusticola 1
Common Sandpiper Actitis hypoleucos 1
Spotted Redshank Tringa erythropus 16
Common Greenshank T. nebularia 80
Nordmann’s Greenshank T. guttifer 1
Wood Sandpiper T. glareola 1
Oriental Pratincole Glareola maldivarum 6
Gull-billed Tern Gelochelidon nilotica 6
Feral Pigeon (Rock Dove) Columba livia 1
Oriental Turtle Dove Streptopelia orientalis 7
Spotted Dove S. chinensis 10
Eurasian Wryneck Jynx torquilla 2 Falco sp. 1
Bull-headed Shrike Lanius bucephalus 4
Long-tailed Shrike L. schach 22
Black-naped Oriole Oriolus chinensis 3
Ashy Drongo Dicrurus leucophaeus salangensis 1
Japanese Paradise Flycatcher Terpsiphone atrocaudata 4
Barn Swallow Hirundo rustica ca. 200
Yellow-bellied Tit Periparus venustulus 3
Light-vented Bulbul Pycnonotus sinensis 16
Asian Stubtail Urosphena squameiceps 2
Pallas’s Leaf Warbler Phylloscopus proregulus 2
Arctic/Kamchatka Leaf/Japanese Leaf Warbler P. borealis/examinandus/xanthodryas 6
Pale-legged/Sakhalin Leaf Warbler P. tenellipes/borealoides 5
Plain Prinia Prinia inornata 6
Reed Parrotbill Paradoxornis heudei 5
Vinous-throated Parrotbill Sinosuthora webbiana 25
Dark-sided Flycatcher Muscicapa sibirica 1
Asian Brown Flycatcher M. dauurica 26
Blue-and-white Flycatcher Cyanoptila cyanomelana 10
Rufous-tailed Robin Larvivora sibilans 4
Red-flanked Bluetail Tarsiger cyanurus 2
Mugimaki Flycatcher Ficedula mugimaki 1
Taiga Flycatcher F. albicilla 1
Daurian Redstart Phoenicurus auroreus 5
White’s Thrush Zoothera aurea 12
Grey-backed Thrush Turdus hortulorum 2
Japanese Thrush T. cardis 2
Eyebrowed Thrush T. obscurus 3
White-cheeked Starling Spodiopsar cineraceus 10
Crested Myna Acridotheres cristatellus 3
White Wagtail Motacilla alba 7
Richard’s Pipit Anthus richardi 2
Olive-backed Pipit A. hodgsoni 2
Red-throated Pipit A. cervinus 2
Yellow-breasted Bunting Emberiza aureola 1
Black-faced Bunting E. spodocephala 1
List 1 of 2 for Sun. 16 Oct. 2016 (50 species)
Birds noted on Hengsha Island (Héngshā Dǎo [横沙岛]), small alluvial island at mouth of Yangtze River in Shanghai, China. S gate to reclaimed area at 31.297333, 121.859434. Hazy, warm, humid. Low 19° C, high 27° C. Humidity 88%. Visibility: 10 km. Wind NNW 11 km/h. PM2.5 AQI: 179 (unhealthful). Sunrise 05:58, sunset 17:20. SUN 16 OCT 2016 05:45-10:15. Craig Brelsford, Elaine Du, & Bryce Harrison.
Eastern Spot-billed Duck Anas zonorhyncha 11
Little Grebe Tachybaptus ruficollis 20
Great Crested Grebe Podiceps cristatus 8
Great Cormorant Phalacrocorax carbo 1
Eurasian Bittern Botaurus stellaris 2
Grey Heron Ardea cinerea 30
Purple Heron A. purpurea 1
Great Egret A. alba 6
Intermediate Egret A. intermedia 3
Little Egret Egretta garzetta 100
Eastern Cattle Egret Bubulcus coromandus 6
Chinese Pond Heron Ardeola bacchus 1
Striated Heron Butorides striata 1
Black-crowned Night Heron Nycticorax nycticorax 75
Eastern Marsh Harrier Circus spilonotus 1
Hen Harrier C. cyaneus 1
Pied Harrier C. melanoleucos 1
Common Moorhen Gallinula chloropus 20
Eurasian Coot Fulica atra 20
Black-winged Stilt Himantopus himantopus 2
Kentish Plover Charadrius alexandrinus 180
Dunlin Calidris alpina 20
Common Snipe Gallinago gallinago 4
Common Greenshank Tringa nebularia 6
Wood Sandpiper T. glareola 3
Spotted Dove Streptopelia chinensis 2
Common Kingfisher Alcedo atthis 3
Eurasian Wryneck Jynx torquilla 1
Common Kestrel Falco tinnunculus 2
Merlin F. columbarius 1 Falco sp. 1
Long-tailed Shrike Lanius schach 13 (including 1 dusky morph)
Eurasian/Oriental Skylark Alauda arvensis/gulgula 10
Barn Swallow Hirundo rustica 50
Red-rumped Swallow Cecropis daurica 2
Light-vented Bulbul Pycnonotus sinensis 12
Black-browed Reed Warbler Acrocephalus bistrigiceps 9
Zitting Cisticola Cisticola juncidis 7
Plain Prinia Prinia inornata 16
Reed Parrotbill Paradoxornis heudei 3
White-cheeked Starling Spodiopsar cineraceus 6
Crested Myna Acridotheres cristatellus 3
Stejneger’s Stonechat Saxicola stejnegeri 1
Eurasian Tree Sparrow Passer montanus 10
Eastern Yellow Wagtail Motacilla tschutschensis 6 (4 taivana, 2 tschutschensis)
White Wagtail M. alba 10
Richard’s Pipit Anthus richardi 12
Olive-backed Pipit A. hodgsoni 1
Red-throated Pipit A. cervinus 1
Yellow-breasted Bunting Emberiza aureola 1
Black-faced Bunting E. spodocephala 2
List 2 of 2 for Sun. 16 Oct. 2016 (47 species)
Around Chongming Dongtan National Bird Sanctuary and Nature Reserve (Chóngmíng Dōngtān Niǎolèi Guójiājí Zìrán Bǎohùqū [崇明东滩鸟类国家级自然保护区]), Chongming District, Chongming Island, Shanghai, China (31.510109, 121.961955). Hazy, warm, humid. Low 19° C, high 27° C. Humidity 88%. Visibility: 10 km. Wind NNW 11 km/h. PM2.5 AQI: 179 (unhealthful). Sunrise 05:58, sunset 17:20. SUN 16 OCT 2016 11:45-16:25. Craig Brelsford, Elaine Du, & Bryce Harrison.
Eurasian Wigeon Mareca penelope 30
Eastern Spot-billed Duck A. zonorhyncha 6
Common Pheasant Phasianus colchicus 1
Little Grebe Tachybaptus ruficollis 50
Grey Heron Ardea cinerea 15
Great Egret A. alba 10
Intermediate Egret A. intermedia 4
Little Egret Egretta garzetta 50
Eastern Cattle Egret Bubulcus coromandus 12
Black-crowned Night Heron Nycticorax nycticorax 5
Hen Harrier Circus cyaneus 2
Common Moorhen Gallinula chloropus 5
Eurasian Coot Fulica atra 60
Grey-headed Lapwing Vanellus cinereus 2
Kentish Plover Charadrius alexandrinus 2
Whimbrel Numenius phaeopus 1
Far Eastern Curlew N. madagascariensis 8
Eurasian Curlew N. arquata 2
Common Snipe Gallinago gallinago 2
Common Sandpiper Actitis hypoleucos 2
Spotted Redshank Tringa erythropus 10
Common Greenshank T. nebularia 4
Marsh Sandpiper T. stagnatilis 25
Wood Sandpiper T. glareola 7
Oriental Pratincole Glareola maldivarum 50
Vega Gull Larus vegae vegae/L. v. mongolicus 1
Common Tern Sterna hirundo 3
Spotted Dove Streptopelia chinensis 8
Eurasian Hobby Falco subbuteo 1
Peregrine Falcon F. peregrinus 1 Falco sp. 1
Bull-headed Shrike Lanius bucephalus 1
Long-tailed Shrike L. schach 16
Black-naped Oriole Oriolus chinensis 1
Eurasian Magpie Pica pica 18
Barn Swallow Hirundo rustica 50
Yellow-bellied Tit Periparus venustulus 1
Light-vented Bulbul Pycnonotus sinensis 20
Reed Parrotbill Paradoxornis heudei 1
Vinous-throated Parrotbill Sinosuthora webbiana 30
Crested Myna Acridotheres cristatellus 7
Asian Brown Flycatcher Muscicapa dauurica 3
Eurasian Tree Sparrow Passer montanus 50
Eastern Yellow Wagtail Motacilla tschutschensis 8 tschutschensis
White Wagtail M. alba 5
Richard’s Pipit Anthus richardi 12
Olive-backed Pipit A. hodgsoni 2
Red-throated Pipit A. cervinus 4
Japanese Tit Parus minor 2
Oriental Magpie-Robin Copsychus saularis 1
Brelsford, Craig, moderator. Shanghai Birding, a WeChat chat group. Quotations from Jonathan Martinez and Paul Holt taken from this chat group. To join Shanghai Birding, fill out the form on our Sightings page.
Brazil, Mark. Birds of East Asia. Princeton University Press. Entry on Ashy Drongo, p. 300. Brazil’s opus grows weaker as the distance from Japan (his base) of the birds he is covering grows longer. Brazil offers no information on D. l. salangensis on the east coast of China.
del Hoyo, Josep, et al., eds. The Handbook of the Birds of the World. Lynx Edicions. Vol. 14, “Bush-shrikes to Old World Sparrows.” Entry for Ashy Drongo (p. 220) written by G.J. Rocamora and D. Yeatman-Berthelot. The authors have “N Gansu” as the northwestern limit of the breeding range of D. l. leucogenis. Is that likely? See also Paul Holt’s misgivings in MacKinnon, John & Karen Phillipps, below.
del Hoyo, Josep, et al., eds. The Handbook of the Birds of the World. Lynx Edicions. Vol. 13, “Penduline-tits to Shrikes.” Entry for Bull-headed Shrike (pp. 775-6) written by Masaoki Takagi. Long-tailed Shrike (p. 781) by Anton Krištín.
Ferguson-Lees, James & David A. Christie. Raptors of the World. Princeton Field Guides. Entries on Pied Harrier, Hen Harrier, and Eastern Marsh Harrier.
MacKinnon, John & Karen Phillipps. A Field Guide to the Birds of China. Oxford University Press. Entry on Ashy Drongo, pp. 281-2. MacKinnon has breeding range of D. l. leucogenis stretching to Heilongjiang. Paul Holt (Shanghai Birding WeChat group) disagrees, saying the northeastern limit is more likely Shandong. Holt writes: “I think that the weakest aspect of John MacKinnon’s ground-breaking field guide are the ranges, and again I don’t think HBW’s accurate on that front either. I’d discount Heilongjiang, Jilin, Liaoning, and Hebei from the breeding range of leucogenis Ashy Drongo and don’t believe that it can breed further north than Shandong (where it might not even occur) and southernmost Shanxi.”