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Journal Article

The Social Significance of Avian Winter Plumage Variability: A Comment

William M. Shields
Evolution
Vol. 31, No. 4 (Dec., 1977), pp. 905-907
DOI: 10.2307/2407455
Stable URL: http://www.jstor.org/stable/2407455
Page Count: 3

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Topics: Plumage, Species, Sparrows, Signals, Flocks, Evolution, Birds, Biological altruism, Animal social behavior, Animals
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