Species nomenclature, overall range and habitat extracted from The A.O.U. Checklist of North American Birds, Seventh Edition (1998) as currently suplemented.

Information on Texas ranges extracted from A T.O.S. Handbook of Texas Birds (2004), by Mark Lockwood and Brush Freeman; and The Bird Life of Texas (1974), by Harry C. Oberholser (edited by Edgar B. Kincaid, Jr.).

Name root information extracted from Dictionary of Birds of the United States (2003), by Joel E. Holloway; and from The Dictionary of American Bird Names (1973), by Ernest A. Choate.