HKBWS BBS 香港觀鳥會新聞組


    
      
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        Discussion Area 討論區 >> Bird Identification 鳥類辨識 >>  ID of Herring Gulls 甚麼銀鷗?
        
(Message started by: isaac_chan on Apr 17^th, 2005, 10:04pm)

Title: ID of Herring Gulls 甚麼銀鷗?
Post by isaac_chan on Apr 17^th, 2005, 10:04pm

Mai Po Boardwalk 米埔浮橋
4/3/2005
D100 + Sigma 120-300mm + 2x

Would you please help to identify the following Herring Gulls.

All of them are Heuglin's Gull 烏灰銀鷗?
http://nature.kl.edu.tw/attachment.php?s=&postid=303554
http://nature.kl.edu.tw/attachment.php?s=&postid=303554

How about these?
http://nature.kl.edu.tw/attachment.php?s=&postid=303563
http://nature.kl.edu.tw/attachment.php?s=&postid=303563

With red legs, Vega Gull 紅腳銀鷗?
http://nature.kl.edu.tw/attachment.php?s=&postid=303564
http://nature.kl.edu.tw/attachment.php?s=&postid=303564

Heuglin's Gull 烏灰銀鷗?
http://nature.kl.edu.tw/attachment.php?s=&postid=303568
http://nature.kl.edu.tw/attachment.php?s=&postid=303568

How about the immature one?
http://nature.kl.edu.tw/attachment.php?s=&postid=303569
http://nature.kl.edu.tw/attachment.php?s=&postid=303569

How about these? 3 of them on left are having darker feathers, Heuglin's Gull 烏灰銀鷗?
http://nature.kl.edu.tw/attachment.php?s=&postid=303571
http://nature.kl.edu.tw/attachment.php?s=&postid=303571

With yellow legs, Yellow-legged Gull 黃腳銀鷗?
http://nature.kl.edu.tw/attachment.php?s=&postid=303572
http://nature.kl.edu.tw/attachment.php?s=&postid=303572

Immature Vega Gull 紅腳銀鷗?
http://nature.kl.edu.tw/attachment.php?s=&postid=303573
http://nature.kl.edu.tw/attachment.php?s=&postid=303573