查看完整版本: Are they Yellow-legged Gulls or Heuglin's Gulls

cywong 24/06/2008 22:53

Are they Yellow-legged Gulls or Heuglin's Gulls

Would experienced birdwatchers please help to confirm the identity of these gulls?

Shanghai, 19.03.08

[IMG]http://img.photobucket.com/albums/v191/cywong/IMG_0783s.jpg[/IMG]

[IMG]http://img.photobucket.com/albums/v191/cywong/IMG_0772s.jpg[/IMG]

[IMG]http://img.photobucket.com/albums/v191/cywong/IMG_0809s.jpg[/IMG]

[IMG]http://img.photobucket.com/albums/v191/cywong/IMG_0820s.jpg[/IMG]

[[i] Last edited by wcherry at 24/06/2008 22:55 [/i]]

HFCheung 28/06/2008 15:42

Yes, I believe they are, judging from the pale grey colour of the mantle and upperwing, and gentle head structure.  Of course Yellow-legged Gull in this region actually have pinkish legs.  I also remember that the amount of white on wing-tip is also an indicator, but I do not remember the details.

Nice photos.

HF Cheung

cywong 28/06/2008 23:36

Many thanks for Dr. Cheung's reply.
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查看完整版本: Are they Yellow-legged Gulls or Heuglin's Gulls