↑American Ornithologists' Union (1983) , Check-list of North American Birds, 6th Edition
↑ 4.04.1American Ornithologists' Union (1998) , Check-list of North American Birds, 7th Edition
↑Banks, R. C., R. W. McDiarmid, and A. L. Gardner (1987) Checklist of Vertebrates of the United States, the U.S. Territories, and Canada, Resource Publication, no. 166
↑American Ornithologists' Union (1987) Thirty-sixth supplement to the American Ornithologists' Union Check-list of North American Birds, The Auk, vol. 104, no. 3
↑Gill, Frank, and Minturn Wright (2006) , Birds of the World: Recommended English Names
↑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