Plumage

Definition and stakes

Alfred Newton 1911 Encyclopædia Britannica (1911)

In the course of the summer they assume nearly the same grey plumage that their parents wear, except that the elongated plumes, which in the adults form a graceful covering of the hinder parts of the body, are comparatively undeveloped, and the clear black, white and red (the last being due to a patch of papillose skin of that colour) of the head and neck are as yet indistinct.
Source: Wikisource

Portrait of William Beebe William Beebe The Log of the Sun: A Chronicle of Nature's Year

The last pin-feather of the new winter plumage has burst its sheath, and is sleek and glistening from its thorough oiling with waterproof dressing, which the birds squeeze out with their bills from a special gland, and which they rub into every part of their plumage. The youngsters, now grown as large as their parents, have become proficient in fly-catching or berry-picking, as the case may be.
Source: Gutenberg

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