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香港鳥類圖鑑白翅浮鷗查證?

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1# A A A Post at 23/05/2010 00:09  Show author

香港鳥類圖鑑白翅浮鷗查證?

我今日查對白翅浮鷗的圖片時, 對P.343 圖4 所描述為繁殖羽有疑問, 我覺得和圖1及3 相同, 應為非繁殖羽, 不知對否, 請專家賜教.
和諧共處  善用自然

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