The ACCIPITRIFORMES are an order that includes most of the diurnal
birds of prey : hawks , eagles , vultures , and many others, about 225
species in all. For a long time, the majority view has been to include
them with the falcons in the
Since then, the split and the placement of the falcons next to the parrots in taxonomic order has been adopted by the American Ornithologists\' Union 's South American Classification Committee (SACC), its North American Classification Committee (NACC), and the International Ornithological Congress (IOC). The British Ornithologists' Union already recognized the Accipitriformes, and has adopted the move of Falconiformes. The DNA-based proposal and the NACC and IOC classifications include the New World vultures in the Accipitriformes, while the SACC classifies the New World vultures as a separate order, the Cathartiformes . The latter view has been adopted here.
* 1 Characteristics * 2 Taxonomy * 3 Footnotes * 4 References * 5 External links
They have strong legs and feet with raptorial claws and opposable
hind claws. Almost all
The young have a long, very fast-growing fledgling stage, followed by
3–8 weeks of nest care after first flight, and 1 to 3 years as
sexually immature adults. The sexes have conspicuously different sizes
and sometimes a female is more than twice as heavy as her mate. This
sexual dimorphism is sometimes most extreme in specialized
bird-eaters, such as the
* ^ Voous 1973 . * ^ Cramp 1980 , pp. 3, 277. * ^ Ferguson-Lees & Christie 2001 , p. 69. * ^ Christidis & Boles 2008 , pp. 50–51. * ^ Hackett et al 2008 . * ^ A B Remsen et al. * ^ Remsen 2008 . * ^ Nores, Barker & Remsen 2011 . * ^ A B Chesser et al. 2010 . * ^ Chesser et al. 2012 . * ^ Gill & Donsker . * ^ Gill Banks, R. C.; Barker, F. K.; Cicero, C.; Dunn, J. L.; Kratter, A. W.; Lovette, I. J.; Rasmussen, P. C.; Remsen, J. V., Jr.; Rising, J. D.; Stotz, D. F.; Winker, K. (2010). "Fifty-First Supplement to the American Ornithologists\' Union Check-list of North American Birds" (PDF). The Auk. 127 (3): 726–744. doi :10.1525/auk.2010.127.3.726 . * Chesser, R. Terry; Banks, Richard C.; Barker, F. Keith; Cicero, Carla; Dunn, Jon L.; Kratter, Andrew W.; Lovette, Irby J.; Rasmussen, Pamela C.; Remsen, J. V.; Rising, James D.; Stotz, Douglas F.; Winker, Kevin (2012). "Fifty-Third Supplement to the American Ornithologists' Union Check-List of North American Birds". The Auk. 129 (3): 573–588. doi :10.1525/auk.2012.129.3.573 . Full text via AOU, COPO, BioOne. * Christidis, Les ; Boles, Walter E. (2008). Systematics and Taxonomy of Australian Birds. CSIRO Publishing. ISBN 0-643-06511-3 . Retrieved 2010-01-14. Includes a review of recent literature on the controversy. * Cramp, Stanley (1980). Handbook of the Birds of Europe, the Middle East and North Africa: The Birds of the Western Palearctic – Hawks to Bustards. Oxford University Press. pp. 3, 277. ISBN 0-19-857505-X .
* Dudley, S. P.; Gee, M.; Kehoe, C.; Melling, T. M. M. (2006). "The
British List: A Checklist of Birds of Britain (7th edition)". Ibis.
148 (3): 526. doi :10.1111/j.1474-919X.2006.00603.x .
* Ferguson-Lees, James ; Christie, David A. (2001). Raptors of the
World. Illustrated by Kim Franklin, David Mead, and Philip Burton.
Houghton Mifflin. ISBN 978-0-618-12762-7 . Retrieved 2011-05-26.
* Gill, Frank ; Donsker, D. "IOC World