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Are they Yellow-legged Gulls or Heuglin's Gulls

cywong

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1^# A A A Post at 24/06/2008 22:53 Show author

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

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

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HFCheung

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2^# A A A Post at 28/06/2008 15:42 Show author

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

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cywong

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3^# A A A Post at 28/06/2008 23:36 Show author

Many thanks for Dr. Cheung's reply.

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