tail covert

WordReference Random House Unabridged Dictionary of American English © 2026

tail′ cov′ert, 

1. Birds any of the feathers concealing the bases of a bird's tail feathers.

• 1805–15

Collins Concise English Dictionary © HarperCollins Publishers::

tail covert noun

1. any of the covert feathers of a bird covering the bases of the tail feathers