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        Discussion Area 討論區 >> Bird Identification 鳥類辨識 >>  Another ID Help Please
        
(Message started by: isaac_chan on Jan 30^th, 2004, 8:35pm)

Title: Another ID Help Please
Post by isaac_chan on Jan 30^th, 2004, 8:35pm

166 Yellow-legged Gull 黃腳銀鷗 Larus cachinnans mongolicus
Tsim Bei Tsui 尖鼻咀
23/1/2004
D100 + Sigma 120-300mm + 2x

What is the name of the gull standing next to the grey heron? ???

Is it Yellow-legged Gull (黃腳銀鷗)? ???
http://kite.center.kl.edu.tw/vbb/attachment.php?s=&postid=74450
http://www.hkbws.org.hk/fileServer/PhotoG/isaac_chan/isaac_chan_247.jpg

Title: Re: Another ID Help Please
Post by cupid on Feb 1^st, 2004, 10:44pm

Is it same as this one  ;)
http://www.pbase.com/image/9493215.jpg
http://www.hkbws.org.hk/fileServer/PhotoG/cupid/cupid_26.jpg

Location: New Zealand (Dec/2002) [Added back on Feb/04]

It may be a Black-backed Gull.

Wilson

Title: Re: Another ID Help Please
Post by GP on Feb 2^nd, 2004, 12:46am

上圖 –紅腳銀鷗（Vega Gull），肩羽較灰，咀較黃。
下圖– Lesser Black-backed Gull，是銀鷗中一亞種。

Title: e: Another ID Help Please
Post by GP更正 on Feb 2^nd, 2004, 7:35am

更正：
一時手快，陳生，你對，上圖應是Yellow-legged Gull。

Title: Re: Another ID Help Please
Post by gjcarey on Feb 2^nd, 2004, 2:13pm

The pale-mantled large gull with the Grey Herons is, indeed, a Yellow-legged Gull Larus cachinnans mongolicus. The combination of pale mantle, clean white head and structure identify it as this taxon.

Vega Gull L. vegae, the other suggestion, is very rare in HK, and the structure is not so large and bulky as this. In addition, in the middle of winter it usually has a lot of brownish streaking on the head and neck.

'mongolicus', as it is generally referred to, is probably best regarded as a full species, 'Larus mongolicus'.

As for the dark-backed large gull, it would be helpful to have details of where and when it was photographed (it's obviously not in Asia, and is not any species that we get in HK).

Geoff

Title: Re: Another ID Help Please
Post by Richard Bacon on Feb 3^rd, 2004, 4:32am

Hi! There is a caption under the large, black-backed gull saying that it was photographed in New Zealand - in which case, it's probably L. dominicanus - Kelp/Dominican/Southern Black-backed gull (Karoro in Maori).

Cheers

Richard Bacon, Wellington NZ