Key to North American Birds
book by Coues
Quick Summary
Key to North American Birds (1872) by Elliott Coues was a groundbreaking work in ornithology. It was the first to use an artificial key for the taxonomic classification of birds in North America. Coues, an American ornithologist and army physician, also published other significant works like A Check List of North American Birds and monographs on regional birdlife. His contributions were vital in advancing the study and classification of North American birds.1
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