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| + | [[Image:BiColored_Hawk_adult_by_Peppershrike77.jpg|thumb|550px|right|Photo by {{user|Peppershrike77|Peppershrike77}}<br />An adult photographed in north east [[Argentina]]]] | ||
;[[: Category:Accipiter|Accipiter]] bicolor | ;[[: Category:Accipiter|Accipiter]] bicolor | ||
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==Identification== | ==Identification== | ||
| − | Adult birds have dark uppersides, plain gray undersides without any dark markings, and rufous thighs which can easily be hidden under gray belly feathers<sup>[[#References|1]]</sup><sup>[[#References|2]]</sup>. Juveniles are more variable showing undersides between white and rufous and less contrasting thighs, but always expected to have a neck collar similar in color to the underparts<sup>[[#References|3]]</sup>. <br /> | + | '''Adult''' birds have dark uppersides, plain gray undersides without any dark markings, and rufous thighs which can easily be hidden under gray belly feathers<sup>[[#References|1]]</sup>, <sup>[[#References|2]]</sup>. '''Juveniles''' are more variable showing undersides between white and rufous and less contrasting thighs, but always expected to have a neck collar similar in color to the underparts<sup>[[#References|3]]</sup>. <br /> |
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| + | ====Similar Species==== | ||
A thread discussing differences between juveniles of this species and the [[Collared Forest Falcon]] is found [http://www.birdforum.net/showthread.php?t=97858 here]. Also frequently confused with various other Forest-Falcons and the [[Gray-bellied Goshawk]]. | A thread discussing differences between juveniles of this species and the [[Collared Forest Falcon]] is found [http://www.birdforum.net/showthread.php?t=97858 here]. Also frequently confused with various other Forest-Falcons and the [[Gray-bellied Goshawk]]. | ||
| − | + | [[Image:Bicolored_Hawk_by_Firetail.jpg|thumb|400px|right|Photo by {{user|Firetail|Firetail}}<br />A juvenile photographed in [[Costa Rica]]]] | |
==Distribution== | ==Distribution== | ||
[[Mexico]] to [[Argentina]] and east to the [[Guianas]] and [[Brazil]]. | [[Mexico]] to [[Argentina]] and east to the [[Guianas]] and [[Brazil]]. | ||
Revision as of 17:39, 27 February 2009
- Accipiter bicolor
Identification
Adult birds have dark uppersides, plain gray undersides without any dark markings, and rufous thighs which can easily be hidden under gray belly feathers1, 2. Juveniles are more variable showing undersides between white and rufous and less contrasting thighs, but always expected to have a neck collar similar in color to the underparts3.
Similar Species
A thread discussing differences between juveniles of this species and the Collared Forest Falcon is found here. Also frequently confused with various other Forest-Falcons and the Gray-bellied Goshawk.
Distribution
Mexico to Argentina and east to the Guianas and Brazil.
Taxonomy
The Chilean Hawk was recently split from Bicolored Hawk. Therefore, four subspecies remains: bicolor, fidens, pileatus, and guttifer4.
Habitat
Lowland and subtropical forests; also reaches the lower limit of the temperate zone around 2500 m.
Behaviour
It builds a stick nest; 1-3 eggs are laid and are incubated for 35 days; the young fledge 30-36 days later.
The diet includes birds.
References
- Restall et al. 2006. Birds of Northern South America. Yale University Press. ISBN 9780300124156
- Thread in the Identification forum of Birdforum
- Thread in the Identification forum of Birdforum
- Clements, James F. 2007. The Clements Checklist of Birds of the World. 6th ed., with updates to October 2007. Ithaca: Cornell University Press. ISBN 9780801445019
