Loons Near Pudong Airport

Black-throated Loon and Red-throated Loon have been found at a little-birded recreational area in Pudong, and Slaty-backed Gull has appeared on the Huangpu River across from the Bund. All three species are rare in Earth’s Greatest City, with Black-throated Loon the scarcest. All three were brought to light by Shanghai birders using social media.

Red-throated Loon Gavia stellata, Sanjiagang Water Park, March 2017. Photo by Kai Pflug.
Red-throated Loon Gavia stellata, Sanjiagang Seaside Park (31.217928, 121.768172). Photo by Kai Pflug. On Sun. 19 March 2017, a day after Michael Grunwell and I viewed it, this loon was discovered dead at the water park. It may have been a victim of poisoning through the ingestion of oil that had collected on its feathers.

The loons had been sighted numerous times before my partner Michael Grunwell and I arrived on Sat. 18 March 2017 at Sanjiagang Seaside Park (31.217928, 121.768172). The dilapidated recreation area is on the coast of the East China Sea, near the mouth of the Yangtze River, 9 km north of Pudong Airport. Chinese birders discovered the loons, and birder Larry Chen, his partners Komatsu Yasuhiko and Archie Jiang, and bird photographer Kai Pflug followed up, reporting back to our chat group, Shanghai Birding.

On Sun. 19 March, the Red-throated Loon was discovered dead at the park by local birder Suōyǔ Hè (蓑羽鹤). It is not clear what killed the bird, but it may have slowly poisoned itself by ingesting oil that had collected on its feathers. Larry said that during his encounters with the individual “The loon was constantly attempting to preen itself” and that he clearly saw oil on one of its flanks. Can you detect anything amiss in the video below?

Red-throated Loon breeds at latitudes above 50 degrees in Eurasia and North America. Wintering Gavia stellata is more common in Shanghai than Black-throated Loon, being recorded annually here. Michael, my wife Elaine Du, and I found Red-throated Loon at Cape Nanhui in January 2016.

The feet of loons are placed far back on their body. Their resulting ungainliness on land is obvious even on a resting loon, as here. Laotieshan, Liaoning, 18 Sept. 2013. Photo by Craig Brelsford.
The feet of loons are placed far back on the bulky body, making loons powerful divers and clumsy walkers. Note the dagger-like bill, elongated head, and thick neck, characteristic of all five species in the loon family Gaviidae. I found this Black-throated Loon on 18 Sept. 2013 at Laotieshan, Liaoning (38.730483, 121.134018).

Black-throated Loon is also known as Black-throated Diver and Arctic Loon. Gavia arctica breeds across northern Eurasia and into Alaska. It is an uncommon winter visitor all along the coast of China and is very rarely noted in Shanghai, with the last previous record in 2012. Before the encounter Saturday, I had seen Black-throated Loon only once, on 18 Sept. 2013 at Laotieshan (38.730483, 121.134018) in the northeastern province of Liaoning.

Here is video of Black-throated Loon at Sanjiagang Seaside Park.

GULLING WITH BIRDERS IN MY POCKET

Michael Grunwell viewing gulls on Huangpu River, 18 March 2017. Photo by Craig Brelsford.
Michael Grunwell views gulls Saturday at Binjiang Park (31.2356935, 121.4973863). Craig Brelsford.

On Sat. 18 March at Binjiang Park (31.2356935, 121.4973863), with the Pudong skyline looming behind, Michael Grunwell and I scanned the gulls on the Huangpu River.

“I think we’ve found Slaty-backed!” Michael cried.

With my iPhone I took photos of the gull through my scope and uploaded the photos to Shanghai Birding, the chat group I manage on the instant-messaging application WeChat. Within minutes the experts in my pocket started weighing in. Shenzhen birder Jonathan Martinez and Larry Chen, both strong gullers, confirmed Michael’s ID. Michael and I had a life bird!

By its second winter, Slaty-backed Gull (C) shows a mantle darker than that of all other gulls in our region. Note the contrast in mantle color between Larus schistisagus and the adult Vega Gull L. vegae vegae/mongolicus surrounding it. Photo by Craig Brelsford using iPhone 6 and PhoneSkope adapter attached to my Swarovski ATX-95 spotting scope.
By its second winter, Slaty-backed Gull (C) shows a saddle a darker shade of grey than that of all other gulls in East Asia. Note here the contrast between the slate-grey of Larus schistisagus (top inset) and the lighter grey of the other gulls, all adult Vega Gull L. vegae vegae/mongolicus (bottom inset). UPDATE, 18 APR 2017: In a guest post for shanghaibirding.com about the Widespread Herring-type Gulls of East Asia, Nial Moores says the gull far L is Taimyr Gull L. (heuglini) taimyrensis. Photo by Craig Brelsford using iPhone 6 and PhoneSkope adapter attached to Swarovski ATX-95 spotting scope.

Slaty-backed Gull Larus schistisagus breeds on islands and cliffs on the coast of the Russian Far East (particularly the Kamchatka Peninsula) as well as Hokkaido. Wintering Slaty-backed are common in Japan, less common in northern coastal China, and rare in Shanghai.

Slaty-backed Gull, 2nd winter, Huangpu River, Shanghai 18 March 2017.
Slaty-backed Gull, Shanghai. Note the angular head, stout bill, and short, thick, bubblegum-pink legs. Craig Brelsford.
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Day Lists
Lists are generated on eBird then adjusted to comport with my first reference, the IOC World Bird List.

List 1 of 2 for Sat. 18 March 2017 (7 species)

Vega/Mongolian Gull Larus vegae vegae/mongolicus, Binjiang Park (31.240195, 121.490717), Shanghai, China, 18 March 2017. © 2017 by Craig Brelsford (www.craigbrelsford.com, www.shanghaibirding.com)
Mongolian Gull Larus vegae mongolicus, Binjiang Park (31.2356935, 121.4973863), 18 March. Tag says ‘AL 62.’ I am looking into the origin of the tag and will update this post when I get more information. This is yet another photo taken with my iPhone 6 + PhoneSkope + Swarovski ATX-95. UPDATE, 22 MAR 2017: Thank you to Nial Moores from Birds Korea for showing me this page about a wing-tagging program for gulls from 2004 in northeastern Mongolia. It is highly possible that the gull above is part of that program. UPDATE, 24 MAR 2017: Gull researcher Andreas Buchheim has written me saying that he himself ringed gull AL 62 on 27 May 2013 at Telmen Lake (48.8, 97.25) in NW Mongolia. Telmen Lake is 2,820 km (1,752 miles) from Shanghai’s Binjiang Park. Buchheim said that when he ringed AL 62, it was already an adult. This means that AL 62 hatched no later than spring 2010 and that the youngest it could be is nearly 7 years old. All large, white-headed gulls breeding in Mongolia, Buchheim said, are mongolicus. Regarding our mongolicus, Nial Moores from Birds Korea said, ‘This individual shows more obvious yellowish tones to the legs than most/any we see here in Korea (where they are invariably pinkish-legged). It is known that some Mongolians on the breeding grounds have yellowish tones to the legs–so perhaps this difference between birds in Shanghai and Korea is to do with hormonal condition pre-migration. It tends to be several degrees colder in Korea than in Shanghai on the same dates, of course.’

Birds noted at Binjiang Park (Bīnjiāng Gōngyuán [滨江公园], (31.2356935, 121.4973863), small urban park on Huangpu River in Pudong New Area (Pǔdōng Xīn Qū [浦东新区]), Shanghai, China. Overcast; low 10° C, high 13° C. Visibility 10 km. Wind NE 11 km/h. PM2.5 AQI: 91 (moderate). Sunrise 06:00, sunset 18:04. SAT 18 MAR 2017 11:00-12:45. Craig Brelsford & Michael Grunwell.

Little Egret Egretta garzetta 20
Black-crowned Night Heron Nycticorax nycticorax 50
Mongolian Gull Larus vegae mongolicus 1 w. tags & band
Vega/Mongolian Gull L. vegae vegae/mongolicus 149
Lesser Black-backed Gull L. fuscus heuglini 3
Slaty-backed Gull L. schistisagus 1
Long-tailed Shrike Lanius schach 1
Chinese Blackbird Turdus mandarinus 15

List 2 of 2 for Sat. 18 March 2017 (22 species)

Shanghai Birder KaneXu (L), and Michael Grunwell share a laugh after discovering that they both own the same model of camera, the Nikon Coolpix P900S.
Shanghai birders KaneXu (L) and Michael Grunwell share a laugh after discovering that they own the same camera, the Nikon Coolpix P900S. The two were at Sanjiagang Seaside Park on 18 March. When it comes to compact cameras, Nikon and other manufacturers are feeling the heat from smartphones. They know that consumers are turning away from compact cameras because the cameras in smartphones are now so good. They are therefore loading up compact cameras such as the P900S with plenty of power and pricing them competitively. KaneXu and Michael are getting great stills as well as video with their new cameras. Photo by Craig Brelsford.

Birds noted at Sanjiagang Seaside Park (Sānjiǎgǎng Hǎibīn Lèyuán [三甲港海滨乐园]; 31.217928, 121.768172), Pudong New Area (Pǔdōng Xīn Qū [浦东新区]), Shanghai, China. Overcast; low 10° C, high 13° C. Visibility 10 km. Wind NE 11 km/h. PM2.5 AQI: 91 (moderate). Sunrise 06:00, sunset 18:04. SAT 18 MAR 2017 14:15-16:45. Craig Brelsford & Michael Grunwell.

Tufted Duck Aythya fuligula 40
Red-throated Loon Gavia stellata 1
Black-throated Loon G. arctica 1
Little Grebe Tachybaptus ruficollis 50
Great Crested Grebe Podiceps cristatus 5
Grey Heron Ardea cinerea 3
Little Egret Egretta garzetta 75
Eurasian Coot Fulica atra 60
Spotted Dove Streptopelia chinensis 7
Long-tailed Shrike Lanius schach 3
Barn Swallow Hirundo rustica 25
Light-vented Bulbul Pycnonotus sinensis 15
Pallas’s Leaf Warbler Phylloscopus proregulus 2 (1 singing)
Vinous-throated Parrotbill Sinosuthora webbiana 40
Pale Thrush Turdus pallidus 1
Daurian Redstart Phoenicurus auroreus 1
Eurasian Tree Sparrow Passer montanus 50
White Wagtail Motacilla alba leucopsis 20
Little Bunting Emberiza pusilla 5
Yellow-throated Bunting E. elegans 1
Black-faced Bunting E. spodocephala 7
Pallas’s Reed Bunting E. pallasi 7

Featured image: Black-throated Loon Gavia arctica, Laotieshan, Liaoning, China, 18 Sept. 2013. Photo by Craig Brelsford using Nikon D3S and Nikkor 600mm F/4 lens. 1/800, F/14, ISO 1600. I was just 7.1 m from the loon, lying on my belly on the rocky shore.

Cinereous Vulture in Shanghai

On 23-24 Jan. Elaine and I noted 68 species on one of the coldest weekends in Shanghai in recent memory. We birded Chongming, the great alluvial island at the mouth of the Yangtze River, and Nanhui. With strong northwesterly winds making temperatures feel as cold as -16°C, many birds lay low, but the strange weather probably played a role in two extraordinary records: 2 Cinereous Vulture (Chongming) and 3 Red-throated Loon (Nanhui). Other notable records were 2 Horned Grebe at Dishui Lake and a winter record of Wood Sandpiper at Nanhui as well as Eastern Yellow Wagtail (taivana) and Red-throated Thrush on Chongming. On Chongming and at Nanhui, we had Red-throated Pipit and Water Pipit mixed in with Buff-bellied Pipit.

Listed as near threatened by IUCN, Cinereous Vulture breeds across Eurasia, from Spain to China. In China, Aegypius monachus breeds mainly in the west as well as in Hulunbeier in northeastern Inner Mongolia. It is a “sporadic” (MacKinnon) or “rare” (Brazil) winter visitor to the southeast China coast. The largest Old World vulture, it has a wing span of about 260 cm (8.5 ft).

From a distance, the huge vultures looked like dogs. They usually stayed close together.
From a distance, the huge vultures looked like dogs. They usually stayed close together.

From a distance, the huge vultures looked like dogs as they rested on the ground. The pair was approachable. They usually stayed close together. Their plumage was shiny, and they appeared healthy. I doubt, however, that the eastern end of Chongming Island is a place that can support a pair of these huge birds for long. A Chinese photographer we met said the Chongming pair was probably the same pair that had been reported recently in Nantong. As of Saturday, the vultures had been on Chongming for a week to 10 days.

According to the IUCN, only about 50 Red-throated Loon winter along the Chinese coast.
According to the IUCN, only about 50 Red-throated Loon winter along the Chinese coast.

Red-throated Loon is also known as Red-throated Diver. Gavia stellata breeds in tundra bogs and taiga pools above 50° N latitude in Eurasia and North America. It winters along the coasts of Europe, Asia, and North America. Though the species faces no global threat, it is rare in China, with IUCN estimating that less than 50 spend the winter on the Chinese coast. Two of our three birds were feeding in one of the few unfrozen fish ponds inside the sea wall. A third was not feeding, and our partner Michael Grunwell feared it had been contaminated by oil.

Elaine and I birded Chongming alone. On Sunday at Nanhui, Michael joined us. We car-birded both days, driving a Skoda Scout rented from Avis.

Cinereous Vulture and Red-throated Loon became the 265th and 266th species of bird that Elaine and I have noted in the Shanghai region since 11 Sept. 2015.

Michael Grunwell searching for Horned Grebe at Dishui Lake, Shanghai, 24 Jan. 2016.
Michael Grunwell searching for Horned Grebe at Dishui Lake, Shanghai, 24 Jan. 2016.

List 1 of 1 for Sat. 23 Jan. 2016 (51 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 Island, Shanghai, China (31.510109, 121.961955). Breezy and clear; low -8°C, high -1°C. Wind NW 32 km/h. Visibility 10 km. PM2.5 AQI: 70. Sunrise 06:51, sunset 17:22. SAT 23 JAN 2016 10:15-17:30. Craig Brelsford & Elaine Du.

Eurasian Wigeon Anas penelope 30
Mallard A. platyrhynchos 4
Eastern Spot-billed Duck A. zonorhyncha 30
Eurasian Teal A. crecca 20
Tufted Duck Aythya fuligula 64
Common Pheasant Phasianus colchicus 1
Little Grebe Tachybaptus ruficollis 4
Black-crowned Night Heron Nycticorax nycticorax 10
Grey Heron Ardea cinerea 3
Great Egret A. alba 2
Intermediate Egret Egretta intermedia 1
Little Egret E. garzetta 10
Great Cormorant Phalacrocorax carbo 42
Cinereous Vulture Aegypius monachus 2
Hen Harrier Circus cyaneus 1
Eurasian Coot Fulica atra 420
Pied Avocet Recurvirostra avosetta ca. 200
Northern Lapwing Vanellus vanellus 6
Grey Plover Pluvialis squatarola 340
Kentish Plover Charadrius alexandrinus 13
Common Snipe Gallinago gallinago 2
Eurasian Curlew Numenius arquata 445
Spotted Redshank Tringa erythropus 2
Common Greenshank T. nebularia 1
Common Sandpiper Actitis hypoleucos 2
Dunlin Calidris alpina 53
Black-tailed Gull Larus crassirostris 9
Vega Gull Larus vegae vegae or L. v. mongolicus 4
Oriental Turtle Dove Streptopelia orientalis 1
Spotted Dove Spilopelia chinensis 4
Eurasian Hoopoe Upupa epops 1
Common Kestrel Falco tinnunculus 1
Long-tailed Shrike Lanius schach 1
Eurasian Magpie Pica pica 5
Light-vented Bulbul Pycnonotus sinensis 3
Vinous-throated Parrotbill Sinosuthora webbiana 20
Crested Myna Acridotheres cristatellus 15
Pale Thrush Turdus pallidus 6
Red-throated Thrush T. ruficollis 1
Naumann’s Thrush T. naumanni 1
Dusky Thrush T. eunomus 2
Daurian Redstart Phoenicurus auroreus 6
Eurasian Tree Sparrow Passer montanus ca. 600
Eastern Yellow Wagtail Motacilla tschutschensis 1 taivana
White Wagtail Motacilla alba 5 leucopsis
Richard’s Pipit Anthus richardi 1
Olive-backed Pipit A. hodgsoni 13
Red-throated Pipit A. cervinus 2
Buff-bellied Pipit A. rubescens japonicus 65
Water Pipit A. spinoletta blakistoni 1
Black-faced Bunting Emberiza spodocephala 4

Mixed in with the Buff-bellied Pipit were Red-throated Pipit (above) and Water Pipit.
Mixed in with the Buff-bellied Pipit were Red-throated Pipit (above) and Water Pipit.

List 1 of 1 for Sun. 24 Jan. 2016 (50 species). Around Pudong Nanhui Dongtan Wetland (Pǔdōng Nánhuì Dōngtān Shīdì [浦东南汇东滩湿地]), Shanghai, China (30.920507, 121.973159). List includes birds found at Dishui Lake (30.908702, 121.945124) and along Shijitang Road from 31.000204, 121.938145 S to 30.851114, 121.848527. Blustery, cold, and sunny; low -8°C, high -6°C. Visibility 10 km. Wind NW 40 km/h. PM2.5 AQI: 68. Sunrise 06:51, sunset 17:23. SUN 24 JAN 2016 07:15-16:30. Craig Brelsford, Elaine Du, & Michael Grunwell.

Falcated Duck Anas falcata 60
Eurasian Wigeon A. penelope 20
Mallard A. platyrhynchos 2
Eastern Spot-billed Duck A. zonorhyncha 45
Common Pochard Aythya ferina 32
Tufted Duck A. fuligula 20
Common Pheasant Phasianus colchicus 1
Red-throated Loon Gavia stellata 3
Little Grebe Tachybaptus ruficollis 80
Great Crested Grebe Podiceps cristatus 55
Horned Grebe P. auritus 2
Eurasian Spoonbill Platalea leucorodia 60
Black-crowned Night Heron Nycticorax nycticorax 2
Grey Heron Ardea cinerea 80
Great Egret A. alba 3
Intermediate Egret Egretta intermedia 1
Little Egret E. garzetta 12
Great Cormorant Phalacrocorax carbo ca. 300
Common Moorhen Gallinula chloropus 3
Eurasian Coot Fulica atra ca. 300
Northern Lapwing Vanellus vanellus 3
Kentish Plover Charadrius alexandrinus 15
Common Snipe Gallinago gallinago 7
Green Sandpiper Tringa ochropus 4
Wood Sandpiper T. glareola 1
Dunlin Calidris alpina ca. 300
Black-headed Gull Chroicocephalus ridibundus 25
Vega Gull Larus vegae vegae or L. v. mongolicus 10
Feral Pigeon (Rock Dove) Columba livia 1
Spotted Dove Spilopelia chinensis 6
Common Kingfisher Alcedo atthis 1
Peregrine Falcon Falco peregrinus 2
Long-tailed Shrike Lanius schach 10
Eurasian Magpie Pica pica 1
Eurasian/Oriental Skylark Alauda arvensis/A. gulgula 1
Zitting Cisticola Cisticola juncidis 1
Vinous-throated Parrotbill Sinosuthora webbiana 20
Crested Myna Acridotheres cristatellus 6
Pale Thrush Turdus pallidus 7
Dusky Thrush T. eunomus 1
Red-flanked Bluetail Tarsiger cyanurus 2
Daurian Redstart Phoenicurus auroreus 10
Eurasian Tree Sparrow Passer montanus ca. 200
White Wagtail Motacilla alba 12 (9 leucopsis, 3 lugens)
Richard’s Pipit Anthus richardi 2
Red-throated Pipit A. cervinus 6
Buff-bellied Pipit A. rubescens japonicus ca. 200
Water Pipit A. spinoletta blakistoni 1
Little Bunting Emberiza pusilla 15
Black-faced Bunting E. spodocephala 1

Blustery winds made for tough birding. Here, Dishui Lake looks like a surging Arctic sea. Note Black-headed Gull flying in background.
Blustery winds made for tough birding. Here, Dishui Lake looks like a surging Arctic sea. Note Black-headed Gull flying in background.

Featured image: Cinereous Vulture Aegypius monachus, Chongming Island, Shanghai, 23 Jan. 2016. Photographed using Nikon D3S and Nikkor VR 600mm F/4G lens mounted atop Manfrotto 055 carbon-fiber tripod and MVH502AH video head. F/9, 1/1250, ISO 2000.