basic plumage
Americannoun
Ornithology.
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the plumage assumed by an adult bird at its complete, usually annual, molt.
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(in birds having more than one plumage in their cycle of molts) the plumage of the first molt, usually the duller plumage.
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
