Rufous-thighed Kite
Harpagus diodon
Small unobtrusive raptor. Adults have a gray body (darker above than below), and rufous thighs and eyes. The throat is white with a very thin dividing black line helping to distinguish it from the similar Bicolored Hawk. In flight, adults have distinctive rufous underwings (white in juveniles), and three pale bands on the tail. Juveniles are streaked below with barred rufous thighs. Found in the canopy of primary forests and at borders. Often seen soaring high overhead.
Identification
The rufous-thighed kite is 29 to 35 cm (11 to 14 in) long with a wingspan of 60 to 70 cm (24 to 28 in). The sexes are almost alike though the female is slightly larger than the male. Chestnut thighs give the species its English name. Adults have a slate gray head and upperparts. Their tail is slate gray with three paler gray bars and white tips to the feathers. Their throat is whitish with a dark streak down its center. Their breast is gray that becomes white at the undertail coverts. Their eye is red or orange, their cere lemon yellow, and their legs yellow to orange. Immature birds have dark brown upperparts with streaks on the side of the head; they are whitish below with some darker streaking on the breast and belly and barring on the flanks.
Taxonomy
Despite its English name, the rufous-thighed kite is not closely related to most other kites but to the "true" hawks. It shares its genus with the double-toothed kite (H. bidentatus) and is monotypic.
- Scientific name
- Harpagus diodon
- Authority
- (Temminck, 1823)
- Order
- Accipitriformes
- Family
- Accipitridae
- Genus
- Harpagus
Range and habitat
The rufous-thighed kite breeds in southern Brazil, northern Argentina, and Paraguay. In the non-breeding season it is regularly found further north in Amazonian Brazil, Bolivia, Guyana, and Suriname. The South American Classification Committee of the American Ornithological Society (SACC) has documented records of vagrancy to French Guiana and Venezuela but has not evaluated a report from Colombia. The SACC also classes the species as hypothetical in Ecuador on the basis of an undocumented sight record.<p>The rufous-thighed kite primarily inhabits lowland rainforest. It favors primary forest but can be found in secondary forest that has aged enough to have a closed canopy. It has been found in both dense and more open forests and even once in a forest patch within the city of São Paulo, Brazil.
- Migration
- Complete migrants
Behavior
Migration pattern: Complete migrants.
Conservation
Population trend: declining.
- Population trend
- declining
Photos
Distribution
Bird Calls
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