Covert feather
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A covert feather or tectrix on a bird is one of a set of feathers, called coverts (or tectrices), which cover other feathers. The coverts help to smooth airflow over the wings and tail.
Ear coverts
The ear coverts are small feathers behind the bird's eye which cover the ear opening (the ear of a bird has no external features)
Tail coverts
peacock
is made of very elongated uppertail coverts.
Wing coverts
The upperwing coverts fall into two groups: those on the inner wing, which overlay the
roof tiles
(the greater coverts are overlain by the median coverts, which in turn are overlain by the outermost row of lesser coverts, and so on).
See also
References
- Mullarney, Killian; Svensson, Lars; Zetterstrom, Dan; Grant, Peter (1999). Collins Bird Guide. London: HarperCollins. ISBN 0-00-219728-6.