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来自维基百科,自由的百科全书
鞘嘴鸥属(学名:Chionis)是鸻形目鞘嘴鸥科的唯一一属,目前仅存两种:白鞘嘴鸥(C. alba)和黑脸鞘嘴鸥(C. minor),全部分布于南极洲。[1]通体白色,其上喙覆盖有角质薄膜,故名。杂食性,常以海藻、鸟粪、鸟蛋、幼鸟、死尸等为食。
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