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.

 
  • 黑燕鸥,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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