↑Dickinson, Edward C., ed. (2003) , The Howard and Moore Complete Checklist of the Birds of the World, 3rd edition
↑Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes (2003) , Checklist of Vertebrates of the United States, the U.S. Territories, and Canada
↑ 4.04.1American Ornithologists' Union (2003) Forty-fourth supplement to the American Ornithologists' Union check-list of North American birds, The Auk, vol. 120, no. 3
↑American Ornithologists' Union (1998) , Check-list of North American Birds, 7th Edition
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