dcsimg

Behaviour ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Variable, sometimes still hunting, generally not shy, also observed chasing poultry and weaver assemblages in native villages; it can be seen flying overhead, or very low, sometimes following river bed, but also seen gliding from post to post, also active dusk (Louette & Herroelen 2007).

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Louette & Herroelen 2007
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Cooleman, Stijn
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Afrotropical Birds LifeDesk

Conservation Status ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Least Concern

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2011, BirdLife International
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Description ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Large black and white Accipiter hawk that occurs across the Afrotropics. Prefers habitats where trees are found but will hunt in open areas as well. Adapts to artificial forests (plantations) as well. Prefers the still hunting methods and preys mainly on birds.

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Breman, Floris
autor
Breman, Floris
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Diagnostic Description ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Black and white (pied). Underside generally white, yellow legs are unfeathered (as opposed to the legs of Spizaeteus sp. and Hieraaetus sp.). Juveniles may be rufous or cream and streaked (Kemp 1994, Ferguson-Lees & Christie 2001).

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direitos autorais
Kemp 1994; Ferguson-Lees & Christie 2001
autor
Breman, Floris
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Distribution ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Widely in tropical Africa (from Senegal to South Africa) and Ethiopia.

More information about the distribution of the two subspecies is available at ibc.lynxeds.com.

Simulated distribution for the present (based on recent observed climate change), for 2025, 2055 and 2085 (based on projected future climate change) is available (BirdLife International and Durham University 2011) at: http://www.birdlife.org/datazone/speciesfactsheet.php?id=3464&cid=556&m=2

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Cooleman, Stijn
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Evolution ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Sister species of A. gentilis. Fills the niche of large bird hunting raptor in the Afrotropics. Marked morphological differences on feet and bill compared to A. gentilis (Wattel 1973).

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Wattel 1973
autor
Breman, Floris
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Genetics ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Sister species to A. gentilis from the Nearctic and Palearctic (Breman et al. 2013).

Has recently been DNA barcoded (Breman et al. unpublished).

May form a superspecies with A. gentilis, A. henstii and A. meyerianus (Global Raptor Information Network 2011).

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Breman, Floris
autor
Breman, Floris
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Habitat ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Forests and savanna woodlands. Occurs from sea level up to 3700 m (Ferguson-Lees & Christie 2001).

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Ferguson-Lees & Christie 2001
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Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Life Expectancy ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Probably comparable to A.gentilis which can live for more than 10 years (Kenward et al. 1999). At least 5 years according to Brown & Brown (1979) but this was based on one pair only.

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Kenward et al. 1999; Brown & Brown 1979
autor
Breman, Floris
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Look Alikes ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Females may be confused with African hawk eagles (Hieraaetus sp.). Juveniles may be confused with female A. tachiro.

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Breman, Floris
autor
Breman, Floris
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Migration ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Sedentary, sometimes migratory (Ferguson-Lees & Christie 2001)

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cc-by-nc-sa-3.0
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Ferguson-Lees & Christie 2001
autor
Breman, Floris
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Morphology ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Adult: upperparts brownish or black. Venter white. Flanks broadly barred or mottled black and white. Melanistic variant exists where only throat is white. Tarsus and toes fairly heavy and long. Claws and bill heavy. Wing moderate and rounded (Wattel 1973).

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Wattel 1973
autor
Breman, Floris
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Movements and dispersal ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Resident, quickly colonises new territories (Ferguson-Lees & Christie 2001)

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Ferguson-Lees & Christie 2001
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Population Biology ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Population size: 100.000 mature individuals.

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cc-by-nc-sa-3.0
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Breman, Floris
autor
Breman, Floris
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Reproduction ( Inglês )

fornecido por Afrotropical Birds LifeDesk

The large stick nest is placed high in a tree (Global Raptor Information Network 2011). Breeding mainly done by female. Clutch size: 2-4 eggs; incubation time 34-38 days.

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Cooleman, Stijn; Breman, Floris
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Cooleman, Stijn
autor
Breman, Floris
site do parceiro
Afrotropical Birds LifeDesk

Size ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Length: 46-85 cm

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Kemp 1994
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Threats ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Habitat loss and pesticides (Ferguson-Lees & Christie 2001 in BirdLife International 2011)

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Cooleman, Stijn
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Trends ( Inglês )

fornecido por Afrotropical Birds LifeDesk

Decreasing (Ferguson-Lees & Christie 2001 in BirdLife International 2011)

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direitos autorais
2011, BirdLife International
autor
Cooleman, Stijn
site do parceiro
Afrotropical Birds LifeDesk

Trophic Strategy ( Inglês )

fornecido por Afrotropical Birds LifeDesk

It feeds on intermediate-sized birds which are hunted in flight. Mammals and other animals are of low importance for this species (Brown & Brown 1979, Kemp 1994, BirdLife International 2011).

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cc-by-nc-sa-3.0
direitos autorais
Brown & Brown 1979; Kemp 1994; BirdLife International 2011
autor
Cooleman, Stijn
autor
Breman, Floris
site do parceiro
Afrotropical Birds LifeDesk