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2017-01-18. Isabekov Askar:Birds on photo is male Mallards (note blue wing mirror + large pale bill) in moulting (note dark heads with pale edges of fresh feathers), like this one. Male Mallard moults from June to September. I think date (beginning of May is incorrect). Please correct me if I am not right. 2017-01-19. 苟军: 请核实拍摄时间,秋季? 2017-01-19. 苟军: Askar的意见是绿头鸭秋季换羽期间的羽色。 2018-01-16. 苟军: Thanks for Askar!这两只鸟蓝黑色翼镜上的白色横带较宽,附议绿头鸭雄鸟和雌鸟。
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