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

References

• AOU; American Ornithologists' Union. 1998. Checklist of North American birds. Washigton, D. C., E. U. A.
• 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..
• B., Bruun., & S. Baha El Din.   (1985).  Common Birds of Egypt, The American University in Cairo Press, Cairo..  
• 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. Falco columbarius
• Birkenstein, L. R. y Tomlinson, R. E. 1981. Native Names of Mexican Birds. Resource Publication. (139). Washigton, D. C., E. U. A.
• Blake, E. R. 1972. Birds of México. A guide for field identification. Chicago, Illinois, E. U. A.
• Brown, L. y Amadon, D. 1989. Eagles, Hawks and Falcons of the World. Wellfleet Press. 2. Secaucus, Nueva Jersey, E. U. A.
• Brown, Leslie and Amadon, Dean, EAGLES, HAWKS AND FALCONS OF THE WORLD (vol. II), McGraw-Hill Book Company, New York, 1968.
• Bruun,Bertel and Robbins, Chandler S. and Zim, Hebert S., A GUIDE TO IDENTIFICATION: BIRDS OF NORTH AMERICA, Golden Press, New York, 1983.
• Burton, P. 1989. Birds of Prey. Gallery Books. Nueva York, E. U. A.
• Burton,Maurice, NEW LAROUSSE ENCYCLOPEDIA OF ANIMAL LIFE, Bonanza, Hong Kong, 1987.
• 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..
• Dickinson, Edward C., ed. 2003. The Howard and Moore Complete Checklist of the Birds of the World, 3rd edition. 1039
• EURING list of longevity records for European birds (Online source)
• Elizondo, L.H. 1992. Especies de Aves Migratorias Neárticas en Costa Rica. Base de Datos de Biodiversidad, Instituto Nacional de Biodiversidad (INBio). Santo Domingo, Heredia. Costa Rica. 6 p. (mimeografiado).
• Escalante-Pliego, P., Sada, A. M. y Robles-Gil, J. 1996. Listado de nombres comunes de las aves de México. CONABIO. México, D. F.
• Friedmann, H., Griscom, L. y Moore, R. T. 1950. Distributional check-list of the birds of Mexico. Pacific Coast Avifauna. 1 (29) .
• García-Peña, E., López-Forment, G. y Flores-Xolocotzi, R. 2002. Información y análisis para el manejo forestal sostenible: Integrando esfuerzos nacionales e internacionales en 13 países tropicales en América Latina. Proyecto GCP/RLA/133/EC. .
• Gill, Frank, and Minturn Wright. 2006. Birds of the World: Recommended English Names. ix + 259
• Grossman, M. L. y Hamlet, J. 1988. Birds of prey of the World. Bonanza Books. Nueva York, E. U. A.
• Grossman, Mary Louise and Hamlet, John, BIRDS OF PREY OF THE WORLD, Clarkson N. Potter, New York, 1964.
• Howell, S. N. G y Webb, S. 1995. A guide to the birds of Mexico and northern Central America. Oxford University Press. Nueva York, E. U. A.
• Kemp, A. C. 1994. Merlín (Falco columbarius). Handbook of the Birds of the World. 2: 267
• Lewis, T.J. & F.G. Stiles.1980. Locational checklist of the birds of Costa Rica. Costa Rica Expeditions. San José, Costa Rica.
• M., Tharwat.   (1997).  ‘Birds Known to occur in Egypt’, National Biodiversity Unit, no. 8, Egyptian Environmental Affairs Agency, Cairo..  
• MacKenzie, John P.S., BIRDS OF PREY, Paper Birch Press, Ashland, WI, 1986.
• Macouzet-Fuentes, T. 1993. Distribución de las aves rapaces (Falconiformes y Strigiformes) en México. Tesis (licenciatura). Departamento de Biología, Facultad de Ciencias, Universidad Nacional Autónoma de México. México, D. F.
• May, John Bichard, THE HAWKS OF NORTH AMERICA, The National Association of Aububon Societies, New York, 1935.
• Newton, I., Dale, L. y Little, B. 1999. Trends in organochlorine and mercurial compounds in the eggs of British Merlins Falco columbarius. Bird Study. 46 (3) : 356-362.
• Nygaarf, T. 1999. Long-term trends in pollutants levels and shell thickness in eggs of Merlin in Norway, in relation to its migration pattern and numbers. Ecotoxicology. 8 (1) : 23-31.
• Parr, S. J. 1994. Changes in the population size and nest sites of Merlins Falco columbarius in Wales between 1970 and 1991. Bird Study. 41 (1) : 42-47.
• Pearson, T. Gilbert, BIRDS OF AMERICA, Garden City Publishing Company, Garden City, New York, 1936.
• Peters, J. L. 1979. Check-List of Birds of the World. Museum of Comparative Zoology. 1. Cambridge, Massachusetts, E. U. A.
• R., Porter., & D. Cottridge.   (2000).  Birds of Egypt and the Middle East, The American University in Cairo Press, Cairo..  
• Richards, A. 1992. Birds of Prey. Courage Books. Filadelfia, Pensilvania, E. U. A.
• S., Baha El Din., J. Hobbs., W. Mullie., S. Goodman., & P. Meininger.   (1989).  The Birds of Egypt, Oxford University Press, New York..  
• SARH; Secretaría de Agricultura y Recursos Hidráulicos. 1994. Inventario Nacional Forestal Periódico 1992-1994. SARH. .
• Sibley, Ch. and B. Monroe, Jr.. 1990. Distribution and Taxonomy of Birds of the World. Yale University Press. New Haven & London. 1111 p.
• Slud, P. 1964. The birds of Costa Rica: Distribution and Ecology. Bulletin of The American Museum of Natural History 128: 5-430
• Sodhi, N. S., Oliphant, L. W., James, P. C. y Warkentin, I. G. 1993. Merlín (Falco columbarius). The Birds of North America. 2 (44) .
• Sprunt, Alexander Jr., NORTH AMERICAN BIRDS OF PREY, Harper and Brothers, New York, 1955.
• 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. 1983. Checklist of birds. Pp. 530-544, In: D.H. Janzen (ed.). Costa Rican Natural History. University of Chicago Press, Chicago.
• White, C. M. 1994. Population trends and current status of selected western raptors. Studies in Avian Biology. (15) : 161-172.
• Whitfield, Dr. Philip, MACMILLAN ILLUSTRATED ANIMAL ENCYCLOPEDIA, Macmillan, New York, 1984.