军舰鸟 （学名：Fregata）是鹈形目军舰鸟科5种大型海鸟的通称。具极细长的翅及长而深的叉形尾，翅展长约可达2.3米，一般雄性成鸟的体羽全黑，雌性成鸟的下部则为明显白色。两性皆具一个裸露皮肤的喉囊，求偶的雄鸟为了展示，其喉囊会呈鲜红色并鼓起。其他明显特征包括4趾，具蹼，以及长的钩状嘴，可以用来攻击其他海鸟，并抢夺其鱼。
n. frigate bird
misc. frigatebird
小军舰鸟 Great frigate bird ; Fregata minor ; Great frigate bird Fregata minor
白斑军舰鸟 Lesser frigate bird ; Fregata ariel ; Fregata ariel Lesser Frgatebrid ; Lesser frigate bird Fregata ariel
丽色军舰鸟 Magnificent frigate bird ; Fregata magnificens
军舰鸟科 [鸟] Fregatidae
白腹军舰鸟 Fregata andrewsi ; Christmas Island Frigatebrid ; Fregata andrewsi Christmas Island Frigatebrid
军舰鸟属 Fregata
阿岛军舰鸟 Fregata aquila Ascension Island Frigatebrid
军舰鸟山 Frigate Bird Hill
安德鲁军舰鸟 Fregata andrewsi
另一方面，丽色军舰鸟则在温暖的月份来到墨西哥湾。
Magnificent frigatebirds, on the other hand, move into the Gulf in warm months.
军舰鸟在空中飞得高些了，又盘旋起来，双翅纹丝不动。
The bird went higher in the air and circled again, his wings motionless.
就在这时，他看见一只长翅膀的黑色军舰鸟在他前方的天空中盘旋飞翔。
Just then he saw a man-of-war bird with his long black wings circling in the sky ahead of him.
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