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Migration Chronology of American Wigeon in Washington, Oregon and California (Chronología Migratoria de Anas americana en Washington, Oregon y California)
Ronald R. Hitchcock, Richard Balcomb and Ronald J. KendallVolume:
64
Language:
english
Journal:
Journal of Field Ornithology
DOI:
10.2307/4513778
Date:
January, 1993
File:
PDF, 334 KB
english, 1993