covert feather

US /ˈkʌvərt ˈfɛðər/
UK /ˈkʌvərt ˈfɛðər/
"covert feather" picture
1.

Any of the small feathers covering the bases of the larger flight feathers of a bird's wing or tail.

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The bird's beautiful plumage was highlighted by the iridescent covert feathers.
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Ornithologists often examine the pattern of covert feathers for species identification.
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tectrix
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covertfeatherflight featherfeather boaa feather in your capruffle someone's featherssmooth (somebody’s) ruffled feathers