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Age and Sex Differences in Winter Distribution of American Goldfinches in Eastern North America
David R. C. Prescott and Alex L. A. MiddletonVolume:
21
Language:
english
Journal:
Ornis Scandinavica
DOI:
10.2307/3676804
Date:
June, 1990
File:
PDF, 1.01 MB
english, 1990