flight feather

基本解释

A young bird that has recently acquired its flight feathers.
雏鸟刚长齐飞行用羽毛的幼鸟
Unusual peacocks are the Argus pheasant, with eyelike spots on its secondary flight feathers, and the white peacock, thought to be a mutation of the common peafowl.
不寻常的孔雀是阿耳弋斯（百眼巨人）般的雉，在第二飞羽上拥有眼睛状斑点，白孔雀，就被认为是普通孔雀的变种。
University of Washington scientists say it depends on how fast you can replace your flight feathers when you molt.
华盛顿大学的科学家们说，这取决于你在换羽期间更换飞羽的速度。
Their primary wing coverts and primary flight feathers are a dark blue color, edged in green.
如果某些事物惊吓到他们，他们会大声尖叫并且朝任何方向很快的飞走。
The upperparts are grey and the black underwing flight feathers contrast with the white coverts.
白腹海雕可以单独捕猎、夫妻一起出动或全家总动员。

any of the large stiff feathers that cover the wings and tail of a bird and are adapted for flying