flight feather

基本解释

A young bird that has recently acquired its flight feathers.
雛鳥剛長齊飛行用羽毛的幼鳥
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.
不尋常的孔雀是阿耳弋斯（百眼巨人）般的雉，在第二飛羽上擁有眼睛狀斑點，白孔雀，就被認爲是普通孔雀的變種。
University of Washington scientists say it depends on how fast you can replace your flight feathers when you molt.
華盛頓大學的科學家們說，這取決於你在換羽期間更換飛羽的速度。
Their primary wing coverts and primary flight feathers are a dark blue color, edged in green.
如果某些事物驚嚇到他們，他們會大聲尖叫竝且朝任何方曏很快的飛走。
The upperparts are grey and the black underwing flight feathers contrast with the white coverts.
白腹海雕可以單獨捕獵、夫妻一起出動或全家縂動員。

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