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Variations in Age and Sex Ratios of Wintering American Goldfinches Trapped at Baited Stations (Variación en la Razón de Edad y Sexos de Individuos Invernales de Carduelis Tristis)
David R. C. Prescott, Alex L. A. Middleton and David R. LambleVolume:
60
Language:
english
Journal:
Journal of Field Ornithology
DOI:
10.2307/4513451
Date:
January, 1989
File:
PDF, 407 KB
english, 1989