中华凤头燕鸥（Chinese crested tern） 中华凤头燕鸥曾在1937年之后被认为已经灭绝，直到2001年研究人员在黄海一处岩石岛屿上发现两对筑巢的燕鸥，此后在大凤头燕鸥（Greater crested terns）和黑尾鸥（Black-tailed gulls）筑巢区内发现了更多混在其中的中华凤头燕鸥。一些别出心裁的保护努力，例如用播放音频的方式把它们吸引到合适的筑巢点，似乎正在起作用。图片来源：Simba Chan, Birdlife International, CC BY SA 2.0
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