The new entries on the shanghaibirding.com list are Sakhalin Leaf Warbler, Dusky Warbler, and White-throated Rock Thrush. The new entries on the eBird list are those three plus Japanese Paradise Flycatcher and Taiga Flycatcher.
“Century Park is getting better,” Hiko said. My young friend is right. Century Park is an island of stability amid the sea of change (mainly degradation) that is the natural environment of Shanghai. Ten years ago this month, when Hiko was a tyke of 6, I made my first visit to urban Shanghai’s best birding area. Little has changed. The biggest difference between October 2007 and October 2017 is, the trees are taller. The wooded areas at Century have an ever-stronger woodsy feel.
— Century yielded yet another regional record of Sakhalin Leaf Warbler. Evidence is growing that in the Shanghai area this passage migrant has been neglected and is more common than previously thought. I recently wrote a series of posts, the latest being this one, on distinguishing Sakhalin Leaf Warbler from its sister species Pale-legged Leaf Warbler.
Here is the recording I made of the calling Sakhalin on Thurs. 5 Oct. Apart from a DNA assay, call as well as song is the only reliable way to separate Sakhalin Leaf Warbler from Pale-legged Leaf Warbler. At 4.9 kHz, the “tink” recorded below is a full kilohertz deeper than the call of Pale-legged Leaf Warbler.
— Eurasian Woodcock whizzed overhead on its way to Bird Island (31.217405, 121.554936). The woodcock was going to the one best place for it in the urban park. Bird Island, Century’s sanctuary-within-a-sanctuary, is a bird-friendly, cat-free parcel of woodland cut off from the rest of the park by a moat.
— Great Spotted Woodpecker used to be found mainly on Bird Island. On Thursday we found 2 in other sectors of the park. With the steadily improving woodland in the park, expect Great Spotted Woodpecker to be seen in more and more areas. Century Park is one of the few areas in urban Shanghai where woodpeckers are commonly found.
On Sun. 17 Sept. 2017 at Pudong’s Cape Nanhui, I achieved a personal first: photos of an unmistakable Sakhalin Leaf WarblerPhylloscopus borealoides. As expected, the photos show a leaf warbler whose plumage and bare parts are virtually indistinguishable from those of Pale-legged Leaf Warbler P. tenellipes. Coupled, however, as they are with sound-recordings of the same individual, ensuring the ID, the photos constitute a rare visual record of Sakhalin Leaf Warbler in Shanghai.
The leaf warbler I found was easily identifiable as a member of the Pale-Sak species pair. It had strikingly pale pink tarsi, an olive-brown crown contrasting with olive-green mantle and wings, a long and creamy supercilium, and faint wing bars on the median and greater coverts.
The bird, which was in Microforest 1, behaved in a way typical of the Pale-Saks I have observed in the Cape Nanhui microforests, eight tiny woodlands that dot the coastline of the cape. Rarely venturing more than 2 m off the ground, the leaf warbler favored low branches and vines for browsing and sturdy low branches for perching. It pumped its tail steadily, called spontaneously, and upon hearing playback of its own call moved in to investigate the source.
Without recording the call of the leaf warbler (call as well as song being a diagnostic separator of Sakhalin and Pale-legged), would I have been able to get an ID? Almost certainly not, said leaf-warbler expert Phil Round:
“I am a bit less sanguine on finding means (other than call frequency or song) to separate all [Pale-Saks]. 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.” (Round, in litt., 2016; emphasis mine)
The most convenient separator of Pale-Sak is song, the cricket-like trill of Pale-legged being easily separable from the metallic whistle of Sakhalin. As Shanghai is not in the breeding range of either species, Pale-Sak songs are not often heard in Earth’s Greatest City. I have heard Sakhalin sing only once, on 5 May 2016 at Shanghai’s Zhongshan Park (Brelsford 2016). The song of Pale-legged I have heard at various locations in Shanghai as well as on its breeding grounds in Heilongjiang (Brelsford & Du 2017).
Although not as readily distinguishable as the songs, the “tink” calls of Pale-Sak differ markedly and consistently and are a reliable basis for an ID (Yap et al. 2014; Round et al. 2016; Weprincew et al. 1989). Yap et al. say the call of Pale-legged is of a “consistently higher frequency” than the call of Sakhalin. The calls that I have recorded of the two species show a difference in frequency of about 1 kHz, very much in line with others’ findings (Brelsford, August 2017; Brelsford, September 2017).
For birders unaccustomed to Pale-Sak calls, the difference may be hard to detect, especially at windy Cape Nanhui. A sound-recorder (which may be a smartphone) will pick up the difference, and an audio spectrogram will show it graphically. Solid, indisputable ticks, in some cases life ticks, await enterprising birders who sound-record.
In recent months, my work with sound-recordings has helped give Shanghai birders a clearer picture not only of Sakhalin Leaf Warbler but also of Kamchatka Leaf Warbler Phylloscopus examinandus, like Sakhalin a poorly known passage migrant through Shanghai (Brelsford, June 2017). In the case of Pale-Sak in Shanghai, a picture is emerging of overlapping migratory pathways. This finding comports with the findings of Yap et al. at Beidaihe, a thousand kilometers to the north. After analyzing calls obtained at Beidaihe of both Pale-legged and Sakhalin, Yap hypothesizes that in coastal Hebei “the migratory pathways of the two sister species may largely overlap” (2014).
How extensive is the Pale-Sak migratory overlap in Shanghai? How many of the Pale-Saks that we find in Shanghai each spring and autumn are Pale-legged, and how many are Sakhalin? Is there a peak passage time in Shanghai for each species, and if so, when is it?
Answers to these questions are currently unknown, but they are probably knowable, and it is very much possible for the citizen-scientists of Shanghai to be the producers of that knowledge. We only need to change our habits. When it comes to identifying lookalike species such as Pale-legged and Sakhalin Leaf Warbler, birders need to understand that photos do nothing to cut through the muddle. Only sound-recordings lead to indisputable records and a clearer picture of the species in Shanghai.
A clearer picture will add to our knowledge of the movement of leaf warblers along the central Chinese coast, focus attention on little-known East Asian species, and heighten the allure of Shanghai as a world-class birding location.
The sound-recordings and audio spectrograms below show clearly the difference in frequency between the calls of Sakhalin and Pale-legged Leaf Warbler.
Round, Philip D., Pierce, Andrew J., Saitoh, Takema, & Shigeta, Yoshimitsu. 2016. Addition of Kamchatka Leaf Warbler Phylloscopus examinandus and Sakhalin Leaf Warbler P. borealoides to Thailand’s Avifauna. Bulletin of the Japan Bird Banding Association 28: 9–21. Available here for download (708 KB) through shanghaibirding.com.
Weprincew, B. N., Leonowitsch, W. W. & Netschajew, W. A. 1989. Zur Lebensweise von Phylloscopus borealoides Portenko und Phylloscopus tenellipes Swinhoe. Mitteilungen aus dem Zoologischen Museum in Berlin 65 (Suppl.): 71–80. (German only)
Yap, F., Yong, D. L., Low, B., Cros, E., Foley, C., Lim, K. K. & Rheindt, F. E. 2014. First wintering record of the Sakhalin Leaf Warbler in South East Asia, with notes on vocalisations. BirdingASIA 21: 76–81. Downloadable here (accessed: 28 Sept. 2017).
Featured image: Sakhalin Leaf WarblerPhylloscopus borealoides, Cape Nanhui, Shanghai, 17 Sept. 2017. Craig Brelsford photographed and sound-recorded this individual, getting a rare record of the poorly known species in Earth’s Greatest City.
Regarding the comment by Dr. Nial Moores in the shanghaibirding.com post Kamchatka Leaf Warbler in Shanghai (6 June 2017): I would agree that both Arctic Warbler Phylloscopus borealis and Kamchatka Leaf Warbler P. examinandus may come through late, alongside each other, even in mid- to late May.
Here in Thailand, I think our earliest Kamchatka (diagnosed on wing length, greater than 70 mm) was 14 April, caught on Man Nai Island (12.015924, 102.283475) at the same time (so far) as our only undoubted Japanese Leaf Warbler P. xanthodryas.
While on average Kamchatka may be slightly larger-billed, and the respective sexes larger and longer-winged than Arctics, there is not much in it. Anybody who expects to be able to call birds one or the other in the field on anything other than voice is stretching credibility, I feel. Plumage overlap seems total. And of course on body size and wing length there is overlap between male Arctic and female Kamchatka.
The featured image above shows two individuals, with two photos each. Both were freshly moulted birds caught on northwards spring passage at Laem Phak Bia (13.050000, 100.083333), Phetchaburi, Thailand. Both were picked out as being slightly more brightly yellowish on underparts and on supercilium than typical spring borealis (caught on the same day), and brighter green above.
The bird in panels 1 and 2 was caught 14 May 2011. Measurements were wing 66 mm, bill 14.5 mm. On mt DNA (COI) we determined that it was examinandus. The identically bright-coloured individual in panels 3 and 4 was caught on the same day. Measurements were wing 62 mm, bill 14.5 mm. It was borealis on DNA.
The paper of which this comparison was a part is titled “Addition of Kamchatka Leaf Warbler Phylloscopus examinandus and Sakhalin Leaf Warbler P. borealoides to Thailand’s Avifauna.” It was published by the Japan Bird Banding Journal and is downloadable (708 KB) through shanghaibirding.com.
We record Kamchatka annually in Thailand, with most records in May. On average it is a later migrant than Arctic with (old specimen) records from Thailand and Malaysia even into the last days of May. Based on birds handled (and DNA assayed), I would re-emphasise that there is total overlap on the range of plumage characters with borealis.
Though we selected our first, unusually bright-plumaged “Arctic Warblers” in mid-May for assay specifically because they were a bit more yellow-green than usual, note that, just as in the panels above, some turned out to be examinandus and some seemingly identically bright birds were borealis.
Takema Saitoh at the Yamashina Institute has a little module that uses a canonical discriminant function that will separate most birds on biometrics. But of course, this is only good for birds that are handled. The key parameters are wing length, total head length (head plus bill), length of outermost primary, and length of tarsus.
As Craig Brelsford notes in his 6 June post, Kamchatka on average are a bit longer-billed. But even this did not reliably separate all birds unless one knew the sex (problems of overlap between female Kamchatka and male Arctic).
Call and song—so important!
Editor’s note: shanghaibirding.com has a growing library of resources on leaf warblers. In addition to the paper Phil Round directs us to above, we have the excellent presentation by Per Alström, “Identification of Phylloscopus & Seicercus warblers in China,” downloadable here (13 MB).
Craig Brelsford has written the following posts about leaf warblers:
Seen at Pudong’s Cape Nanhui on Sun. 4 June 2017: Kamchatka Leaf WarblerPhylloscopus examinandus. Veteran British birder Michael Grunwell and I found our 4 Kamchatkas in Microforest 4 (30.953225, 121.959083), the largest of the tree plantations on the landward side of the sea wall. The species is an all-time first for the Shanghai eBird list.
Just after sunrise, Michael and I, as is our wont, were doing “drive-by birding”–creeping along the edge of the road, listening out for birds. Suddenly, I heard an unfamiliar sound.
My gut said, “Hard, loud–Taiga Flycatcher?”
Taiga was not even close, of course. Note, however, what my gut was not saying: “Arctic Warbler,” a bird whose call I know well. This call was decidedly not an Arctic’s, though it soon dawned on us that we were hearing some type of leaf warbler.
To see why my gut did not say Arctic, compare my recordings of the tight “tzit” call of Arctic Warbler with the looser call of Kamchatka Leaf Warbler:
Kamchatka Leaf Warbler P. examinandus, Microforest 4 (30.953225, 121.959083), Cape Nanhui, 4 June 2017 (00:25; 4.9 MB)
Michael and I skidded to a stop and poked our heads into the green tangle of locust trees. The call was being followed by a song. Only upon hearing the song did I think of Arctic Warbler. But here too, the song, though similar, was distinctive–wavier than the straight trill of Arctic. Look at the spectrograms below.
After hearing several song-call cycles, Michael, my more experienced partner and the man who has taught me more than anyone about birding, first said the words “Kamchatka Leaf Warbler.”
Michael has birded the Indonesian islands of Flores and Komodo, where Kamchatka Leaf Warbler winters. Michael said that, last winter, walking through the forests there, he heard dozens of times the call of P. examinandus.
“I know that call,” Michael said.
I whipped out my Olympus DM-650 voice recorder and recorded the calling and singing warbler. Meanwhile, we caught our first glimpse of the individual. It was clearly an “Arctic-type” leaf warbler.
What is an “Arctic-type” leaf warbler? An Arctic-type leaf warbler is a member of one of four closely related taxa divided among three species: Japanese Leaf Warbler Phylloscopus xanthodryas, Kamchatka Leaf Warbler P. examinandus, and Arctic Warbler P. borealis borealis and P. b. kennicotti.
Arctic Warbler is by far the most widespread breeder in the complex. P. b. borealis breeds across northern Eurasia, from Scandinavia to northeast China and the Russian Far East. P. b. kennicotti breeds in western Alaska.
In 2010 Shanghai Birding member Per Alström et al. proposed the current way of viewing the Arctic-type warblers. Previously, the taxon examinandus was putative, not even reaching the subspecies level; Alström and his team showed that examinandus, with its distinctive song and call, merits recognition not as a subspecies of Arctic Warbler but as a species in its own right.
Of the three Arctic-type species, Japanese Leaf Warbler most stands out, being on average yellower than the two others. Arctic and Kamchatka look much more alike.
There are, however, some slight differences. Kamchatka is said to have a “marginally longer bill, tarsi and tail” than Arctic (del Hoyo & Collar). Sure enough, the Kamchatka I photographed is long-billed. Take a look below.
Michael and I heard our loudest song and calls during that first, early morning encounter. However, we heard Kamchatka calling throughout the day.
Our new Shanghai record, combined with late-May and early-June records from nearby Zhejiang, suggests that in this region, once the wave of Arctics passes through around 15 May, Kamchatka Leaf Warbler may be the Arctic-type to look out for.
Alström P., T. Saitoh, D. Williams, I. Nishiumi, Y. Shigeta, K. Ueda, M. Irestedt, M. Björklund & U. Olsson. 2011. The Arctic Warbler Phylloscopus borealis — three anciently separated cryptic species revealed. Ibis 153:395-410.
Brelsford, Craig, moderator. Shanghai Birding, a WeChat group. Discussions with various birders, chief among them Hangzhou birder Cheng Qian, who had information about sightings of P. examinandus in Zhejiang. Beijing-based Swedish birder Jan-Erik Nilsén also provided timely advice. To join Shanghai Birding, in WeChat, friend Craig Brelsford (WeChat ID: craigbrelsford). In your friend request, please make it clear that you wish to join Shanghai Birding.
del Hoyo, J. & Collar, N. (2017). Kamchatka Leaf-warbler (Phylloscopus examinandus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona, Spain. (retrieved from http://www.hbw.com/node/1343935 on 6 June 2017).
Featured image: Kamchatka Leaf WarblerPhylloscopus examinandus. On 4 June 2017 at Cape Nanhui, birders Michael Grunwell and Craig Brelsford found the individual pictured here and three others. (Craig Brelsford)
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