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.
在英国周围的海岸，象北极燕鸥、三只鸥、海雀和海鸭等海鸟数量的显著减少，可能是由于玉筋属鱼类消失导致的。
The striking drop in numbers round British coasts of such seabirds as arctic terns, kittiwakes, guillemots and puffins is probably a result of the disappearance of sand eels.
在英国周围的海岸，象北极燕鸥、三只鸥、海雀和海鸭等海鸟数量的显著减少，可能是由于玉筋属鱼类消失导致的。
The striking drop in numbers round British coasts of such seabirds as arctic terns, kittiwakes, guillemots and puffins is probably a result of the disappearance of sand eels.
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