Color Key to North American Birds
by Frank M. Chapman
Publisher: D. Appleton & co. 1912
Number of pages: 356
To learn to call a bird by its right name is the first step in the study of ornithology. We may propose to investigate the structure, food, and habits of the birds of the world, or desire merely a superficial knowledge of the species found in our garden, but in either case we are at once confronted by this question of identification.
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