A Study of the Gyrfalcons with Particular Reference to North America
Todd, W. E. Clyde (Walter Edmond Clyde), 1874-1969 Friedmann, Herbert 1900-1987
Article
1947
The Wilson bulletin
59
Issue: 3
139--150
BioStor
English
Columbus, Ohio, Wilson Ornithological Society, 1894-
BioStor: https://biostor.org/reference/201512 JSTOR: 4157595
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