Any of several terns of the genera Anous and Micranous, found in tropical waters and having a dark brown or black color with a white or gray head.
一种燕鸥黑燕鸥和小黑燕鸥属，发现生长于热带水中，头为白色或灰色，身为深褐色或黑色。
Any of several terns of the genera Anous and Micranous, found in tropical waters and having a dark brown or black color with a white or gray head.
一种燕鸥黑燕鸥和小黑燕鸥属，发现生长于热带水中，头为白色或灰色，身为深褐色或黑色。
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