1. AMERICAN ORNITHOLOGISTS' UNION, 1931 Check-list of North American birds. Fourth edition. American Ornithologists' Union, Lancaster, Pennsylvania. Pp XIX + 526.
2. AMERICAN ORNITHOLOGISTS' UNION, 1957 Check-list of North American birds. Fifth edition. American Ornithologists' Union, Baltimore, Maryland. Pp XII + 691.
3. AMERICAN ORNITHOLOGISTS' UNION, 1983 Check-list of North American birds. Sixth edition. American Ornithologists' Union, Washington, D.C. Pp. XXIX + 877.
4. Thirty-Fifth Supplement to the American Ornithologists’ Union Check-list of North American Birds