Sulawesi Goshawk (Accipiter griseiceps)

Sulawesi Goshawk

[order] ACCIPITRIFORMES | [family] Accipitridae | [latin] Accipiter griseiceps | [authority] Schlegel, 1862 | [UK] Sulawesi Goshawk | [FR] Autour de Celebes | [DE] Graukopf-Habicht | [ES] Gavilan de Celebes | [NL] Grijskophavik

Subspecies

Genus Species subspecies Region Range
Accipiter griseiceps AU Sulawesi

Genus

Members of the genus Accipiter are small and medium-sized hawks, often called Sparrow-hawks or Goshawks. The females are almost invariably much larger than the males – in some cases weighing twice as much – a level of size dimorphism only exceptionally reached in any other genus Falconiformes. Their wings are short and rounded; the tail usually quite long. They are well adapted for flying through dense bush. Bird-catching Sparrow-hawks generally have long and slender legs, with slender digits, the middle one being especially long. Goshawks are usually larger, with shorter, thicker tarsi and digits and a shorter middle digit. Some smaller species have goshawk-like feet and vice versa, making it difficult on a world-wide basis to subdivide the genus on this or any other broad basis. Although many accipiters feed upon birds moreso than do other hawks, some species take many mammals, especially squirrels; others take lizards, frogs, snakes, insects, even snails. In these species the legs and digits are sometimes slender, but short. Accipiters are rarely crested, but some have very attractive colour patterns. Black phases are present, especially in the tropical species. One in Australia has the only pure white phase. Accipiter is the largest genus in the family, having about fifty species. It is present worldwide, but is especially rich in Papua-New Guinea, where a small island like New Britain may have three to five endemic species or distinct sub-species.

Physical charateristics

Small goshawk with dark brown upperparts and a greyish head. Breast white heavily streaked dark brown with some finer barring on thigh feathers. Tail braodly barred black-brownish, upper chin white, cere and legs pale yellow.


wingspan min.: 0 cm wingspan max.: 0 cm
size min.: 33 cm size max.: 38 cm
incubation min.: 0 days incubation max.: 0 days
fledging min.: 0 days fledging max.: 0 days
broods: 0   eggs min.: 0  
      eggs max.: 0  

Range

Australasia : Sulawesi

Habitat

Inhabits primary lowland, hill, and montane forest, and mangroves, tall secondary woodland, and the vicinity of villages. Seldom observed, since it frequents the forest interior. Usually seen singly, rarely in pairs

Reproduction

Hardly any data, a nest was found in a not too tall tree in montane forest.

Feeding habits

Feeds on small mammals, birds, lizards, and large insects, which it captures by hiding in dense foliage and swooping down on prey on the ground

Conservation

This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size may be small, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
Sulawesi Goshawk status Least Concern

Migration

Sedentary

Distribution map

Sulawesi Goshawk distribution range map

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