The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.

References

• American Ornithologists's Union. 1998. Check-List of North American Birds (The Species of Birds of North America from the Arctic through Panama, Including the West Indies and Hawaiian Islands). 7th.ed.. Allen Press, Inc., Lawrence, Kansas, U.S.A..
• 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
• 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. 79
• BirdLife International 2009. Elanoides forficatus
• Buskirk W.H. y M. Lechner. 1978. Frugivory by Swallow-Tailed Kites in Costa Rica. The Auk 95: 767-768.
• Campos, R.G. 1989. Notas de campo sobre aves en diferentes sitios del país. Grecia, Costa Rica. 4p.
• Chaves, A. 1988. Inventario Biológico de la Zona Norte. Informe Final, Consultoría realizada para el Centro Agronómico Cantonal de Upala. Organización para Estudios Tropicales. San José, Costa Rica. 180 p.
• Clapp, R., M. Klimkiewicz, J. Kennard. 1982. Longevity records of North American birds: Gaviidae through Alcidae. J. Field Ornithol, 53(2): 81-208. Accessed January 15, 2007 at http://elibrary.unm.edu/sora/JFO/v053n02/index.php.
• DeWitt, L. 1989. Eagles, Hawks, and Other Birds of Prey. New York: Franklin Watts.
• Delgado, R.; R.G. Campos; J. Sánchez y Ch. Gómez. 1998. Lista de Aves de Costa Rica/ Checklist of Costa Rican Birds. ASOCIACION ORNITOLOGICA DE COSTA RICA. San José. Costa Rica. 28 p..
• Ehrlich, P., D. Dobkin, D. Wheye. 1988. The Birder's Handbook: A Field Guide to the Natural History of North American Birds. New York: Simon and Schuster Inc..
• Elizondo, L.H. 1984. Inventario preliminar de la avifauna del Parque Nacional Braulio Carrillo. Servicio de Parques Nacionales, Ministerio de Agricultura y Ganadería (MAG). San José, Costa Rica. 5 p.
• Elizondo, L.H. 1985. Inventario preliminar de la avifauna del Parque Nacional Corcovado. Servicio de Parques Nacionales, Ministerio de Agricultura y Ganadería (MAG). San José, Costa Rica. 4 p.
• Elizondo, L.H. 1987. Inventario de Aves en la Zona Protectora La Cangreja. Centro de Datos para la Conservación, Fundación Neotrópica. San José, Costa Rica. 3 p.
• Elizondo, L.H. 1991. Inventario de especies de aves de la Escuela de Agricultura de la Región Tropical Húmeda (EARTH). Guácimo, Limón, Costa Rica. Instituto Nacional de Biodiversidad. Heredia Costa Rica. 7 p.
• Gill, Frank, and Minturn Wright. 2006. Birds of the World: Recommended English Names. ix + 259
• Johnsgard, P. 1990. Hawks, Eagles, and Falcons of North America. Washington, D.C.: Smithsonian Institution Press.
• Lewis, T.J. & F.G. Stiles.1980. Locational checklist of the birds of Costa Rica. Costa Rica Expeditions. San José, Costa Rica.
• Sibley, Ch. and B. Monroe, Jr.. 1990. Distribution and Taxonomy of Birds of the World. Yale University Press. New Haven & London. 1111 p.
• Skutch, A.F.. 1965. Life History Notes on Two Tropical American Kites. The Condor 67: 235-246.
• Slud, P. 1960. The birds of Finca La Selva, Costa Rica: A tropical wet forest locality. Bulletin of the American Museum of Natural History 121(2): 146 p.
• Slud, P. 1964. The birds of Costa Rica: Distribution and Ecology. Bulletin of The American Museum of Natural History 128: 5-430
• Stiles, F.G. & A. F.Skutch. 1995. Guía de Aves de Costa Rica.Traducción al Español: Loretta Rosselli. Ilustrado por Dana Gardner. Instituto Nacional de Biodiversidad (INBio). Heredia, Costa Rica. 580 p.
• Stiles, F.G. 1977. Checklist of the birds of La Selva and vicinity. Universidad de Costa Rica. San José, Costa Rica. 12 p.
• Stiles, F.G. 1983. Checklist of birds. Pp. 530-544, In: D.H. Janzen (ed.). Costa Rican Natural History. University of Chicago Press, Chicago.
• Stiles, F.G. 1985. Conservation of forest birds in Costa Rica: Problems and perspectives. ICBP Technical Publication 4: 141-168.
• Stiles, F.G. 1991. Forest Birds - Caribbean slope. s.d. 7 p. (manuscrito).
• Stiles, F.G. 1991. Lista preliminar de la avifauna de la Reserva Forestal de San Ramón. Pp. 73-78, In: R. Ortiz (ed.). Memoria de Investigación, Reserva Forestal de San Ramón. Oficina de Publicaciones, Sede de Occidente, Universidad de Costa Rica.
• Wolf, L. 1976. Avifauna of The Cerro de la Muerte Region Costa Rica. American Museum Novitates (2606): 1-37.