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A photo of a African Hawk-Eagle (Aquila spilogaster)
African Hawk-Eagle

African Hawk-Eagle

Aquila spilogaster

The African hawk-eagle (Aquila spilogaster) is a large bird of prey. Like all eagles, it belongs to the family Accipitridae. This species’ feathered legs mark it as a member of the Aquilinae subfamily. The African hawk-eagle breeds in tropical Sub-Saharan Africa. It is a bird of assorted woodland, including both savanna and hilly areas but the tend to occur in woodland that is typically dry. The species tends to be rare in areas where their preferred habitat type is absent. The African hawk-eagle has a somewhat small head but one that protrudes quite well due its quite long neck and relatively prominent beak. Furthermore, the species possesses a longish tail, with long and somewhat slender feathered legs and has large, robust feet. Although African hawk-eagles occasionally take to perching in the open, they usually are somewhat obscured for much of the day within the cover of foliage and often perch relatively low down in tall trees. The wing tips tend to fall a bit short of the tail tip. The adult African hawk-eagle evidences a fairly pied look with slate black-grey coloration above and whitish coloration below. At a distance, they may appear purely black-and-white but at close range they show sparse but extensive white flecks on the mantle and wing coverts. Occasionally, a greyer patch may be apparent on the folded secondaries of perched or sitting birds. The tail of an adult is grey with thin dark bars, a broad subterminal band and a white tail tip. The adult hawk-eagle’s underside is white with bold but small and sparse drop-like blackish streaks. As was noted in a 2010 study, in an usual instance of plumage sexual dimorphism for an Aquilinae eagle, the underside tends to more sparsely marked on adult males and more densely marked on adult females to such a degree that an experienced observer may be able to sex individual African hawk-eagles despite the two genders being similar in size. The adult African hawk-eagles has whitish coloring on the thighs and the crissum. The juvenile of the species is highly distinct from older hawk-eagles. Juveniles are moderately dark brown above with some pale edging, a slightly black-streaked head and a more clearly barred tail than adult hawk-eagles. The underside has a tawny-rufous base colour. When juvenile African hawk-eagles present black shaft streaks below they are usually only obvious on the flanks and they can border on being absent. Once developing as an immature at two to four years old, the upperside becomes progressively darker, the underside paler and more streaked and a subterminal tail band forms. At four years of age, as in related species, the African hawk-eagle becomes fully mature. The eyes of adult hawk-eagles are rich yellow while those of juveniles are hazel-brown while the cere and feet at all ages range from dull to somewhat brighter yellow.
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African Hawk-Eagles on Birda

Photos

Sightings

A map showing the sighting location
Profile picture for Ashwell Barrett Glasson
Ashwell Barrett Glasson
Thursday 21 Sep 2023 - 6:55am
South Africa
A map showing the sighting location
Profile picture for Conraad Loubser
Conraad Loubser
Tuesday 19 Sep 2023 - 9:17am
South Africa
A map showing the sighting location
Profile picture for Robert Patmore
Robert Patmore
Sunday 17 Sep 2023 - 11:43am
South Africa
A map showing the sighting location
🐧
Andra Hennop
Sunday 03 Sep 2023 - 12:08pm
South Africa
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