definitive plumage
noun Ornithology.
- the plumage of a bird that, once attained, does not change significantly in color or pattern for the rest of the bird’s life.
Definitive plumage of male and female Streak-necked Flycatchers
Representative females in the definitive plumage of all four
American Goldfinch (Spinus tristis) Bird in definitive plumage on
American White Pelican in Definitive Alternate Plumage aka Breeding
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