Author:
Thurber Walter A.,Schulenberg Thomas S.,Sedgwick Carolyn W.,Boesman Peter F. D.
Publisher
Cornell Lab of Ornithology
Reference3 articles.
1. Howell, S. N. G., and S. Webb (1995). A Guide to the Birds of Mexico and Northern Central America. Oxford University Press, New York, New York, USA.
2. Bent, A.C. (1940). Life Histories of North American Cuckoos, Goatsuckers, Hummingbirds, and their Allies. US National Museum Bulletin 176. Smithsonian Institution, Washington, D.C. (Reprinted by Dover Publications, New York). 506 pp.
3. Zyskowski, K., Peterson, A.T. and Kluza, D.A. (1998). Courtship behaviour, vocalizations, and species limits in Atthis hummingbirds. Bull. Brit. Orn. Club. 118: 82-90.