(Picture of imm Bay-winged. References updated) |
(Minor picture placement. References updated) |
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| − | [[Image:Harris_Hawk_in_flight_by_destombe.jpg|thumb| | + | [[Image:Harris_Hawk_in_flight_by_destombe.jpg|thumb|450px|right|Adult of US form<br />Photo by {{user|destombe|destombe}}<br />Elfrida, [[Arizona]], [[USA]], December 2006]] |
'''Includes Bay-winged Hawk''' | '''Includes Bay-winged Hawk''' | ||
;[[:Category:Parabuteo|Parabuteo]] unicinctus | ;[[:Category:Parabuteo|Parabuteo]] unicinctus | ||
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====Subspecies==== | ====Subspecies==== | ||
[[Image:Bay-winged_Hawk_juvenile_by_Rodrigo_Reyes.jpg|thumb|300px|right|Juvenile "Bay-winged Hawk"<br />Photo by: {{user|Rodrigo_Reyes|Rodrigo Reyes}}<br /> Location: [[La Campana National Park]], [[Chile]], February 2005]] | [[Image:Bay-winged_Hawk_juvenile_by_Rodrigo_Reyes.jpg|thumb|300px|right|Juvenile "Bay-winged Hawk"<br />Photo by: {{user|Rodrigo_Reyes|Rodrigo Reyes}}<br /> Location: [[La Campana National Park]], [[Chile]], February 2005]] | ||
| − | There are 2 | + | There are 2 subspecies<sup>[[#References|[1]]]</sup>: |
| − | *''P. u. harrisi'' | + | *''P. u. harrisi'': |
| − | *''P. u. unicinctus'' ('''Bay-winged Hawk''') | + | :*Arid south-western [[US]] to Pacific slope of [[Colombia]], [[Ecuador]] and [[Peru]] |
| + | *''P. u. unicinctus'' ('''Bay-winged Hawk'''): | ||
| + | :*East Colombia and [[Venezuela]] to [[Brazil]], southern [[Argentina]] and southern [[Chile]]; this form does not perform the team hunting described below. | ||
An additional subspecies ''P. u. superior'' in Baja California, [[Arizona]], [[Sonora]], and [[Sinaloa]] is not generally recognised<sup>[[#References|[2]]]</sup>. | An additional subspecies ''P. u. superior'' in Baja California, [[Arizona]], [[Sonora]], and [[Sinaloa]] is not generally recognised<sup>[[#References|[2]]]</sup>. | ||
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They nest in a tree; the clutch consisting of 2–4 eggs which are incubated for 28 days. | They nest in a tree; the clutch consisting of 2–4 eggs which are incubated for 28 days. | ||
==References== | ==References== | ||
| − | #{{Ref- | + | #{{Ref-Clements6thAug16}}#Avibase |
# [http://www.peregrinefund.org/Explore_Raptors/hawks/harrishk.html Peregrine Fund] | # [http://www.peregrinefund.org/Explore_Raptors/hawks/harrishk.html Peregrine Fund] | ||
# Restall et al. 2006. Birds of Northern South America. Yale University Press. ISBN 9780300124156 | # Restall et al. 2006. Birds of Northern South America. Yale University Press. ISBN 9780300124156 | ||
Revision as of 22:14, 31 March 2017
Includes Bay-winged Hawk
- Parabuteo unicinctus
Identification
Length 45–59 cm (17¾-23¼ in), WS 107cm (42"), Wt. 900gm (2lb).
Blackish brown plumage with chestnut forewings (above and below) and thighs. The end of the tail and the rump are white, with distinctive black band between.
Females are typically 10% larger than males. Juveniles are similar in appearance, but have streaking common in this family.
Variations
The southernmost form (Bay-winged Hawk) remains streaked on underside and paler, streaked head even as adult, and is fairly pale on underside as juvenile.
Distribution
Sonoran desert of the southwest USA and Mexico, Baja Penisula, Gulf Coast from central coastline of Texas southward through Mexico to Chile and Argentina. This species is absent from much of eastern South America
Taxonomy
Subspecies
Photo by: Rodrigo Reyes
Location: La Campana National Park, Chile, February 2005
There are 2 subspecies[1]:
- P. u. harrisi:
- P. u. unicinctus (Bay-winged Hawk):
An additional subspecies P. u. superior in Baja California, Arizona, Sonora, and Sinaloa is not generally recognised[2].
Habitat
Sparse woodland and semi-desert, as well as marshes.
Behaviour
Diet
An unusual behavior in its family is team hunting; birds will cooperate in taking prey, often taking perches in what seems like a strategic manner to confuse and herd its prey before one of the group strikes. This allows it to take larger prey such as jackrabbits. Teams can comprise 2 to 6 individuals. Other prey includes rodents, lizards, and birds.
Breeding
They nest in a tree; the clutch consisting of 2–4 eggs which are incubated for 28 days.
References
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2016. The eBird/Clements checklist of birds of the world: v2016, with updates to August 2016. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- Avibase
- Peregrine Fund
- Restall et al. 2006. Birds of Northern South America. Yale University Press. ISBN 9780300124156
- Alvaro Jaramillo. 2003. Birds of Chile. Princeton Field Guides. ISBN 0-691-11740-3
- Wikipedia
Recommended Citation
- BirdForum Opus contributors. (2024) Harris's Hawk. In: BirdForum, the forum for wild birds and birding. Retrieved 29 April 2024 from https://www.birdforum.net/opus/Harris%27s_Hawk
