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Aug 27 2011

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Sulawesi Hawk-Eagle (Nisaetus lanceolatus)

Sulawesi Hawk-Eagle

[order] ACCIPITRIFORMES | [family] Accipitridae | [latin] Nisaetus lanceolatus | [authority] Temminck and Schlegel, 1844 | [UK] Sulawesi Hawk-Eagle | [FR] Aigle des Celebes | [DE] Celebsadler | [ES] Aguila-azor de celebes | [NL] Celebeskuifarend

Subspecies

Genus Species subspecies Region Range
Nisaetus lanceolatus AU Sulawesi

Genus

Nisaetus is a genus of eagles found mainly in tropical Asia. They were earlier placed within the genus Spizaetus but molecular studies show that the Old World representatives were closer to the genus Ictinaetus than to the New World Spizaetus (in the stricter sense). They are slender bodied, medium sized hawk-eagles with rounded wings, long feathered legs, barred wings, crests and usually adapted to forest habitats

Physical charateristics

It is a medium-sized, approximately 60 cm long, crestless brown raptor in the family Accipitridae. The adults have rufous-brown, boldly marked head and chest feathers, dark brown wings and black-barred white below. The young has white head and underparts.

Listen to the sound of Sulawesi Hawk-Eagle

[audio:http://www.planetofbirds.com/MASTER/ACCIPITRIFORMES/Accipitridae/sounds/Sulawesi Hawk-Eagle.mp3]

Copyright remark: Most sounds derived from xeno-canto


wingspan min.: 0 cm wingspan max.: 0 cm
size min.: 56 cm size max.: 46 cm
incubation min.: 0 days incubation max.: 0 days
fledging min.: 0 days fledging max.: 0 days
broods: 1   eggs min.: 1  
      eggs max.: 1  

Range

Australasia : Sulawesi. An Indonesian endemic, the Sulawesi Hawk-Eagle is distributed in rainforests of Sulawesi and its satellite islands of Buton, Muna, Banggai and Sula Islands.

Habitat

Inhabits primary and tall secondary lowland, hill, and montane forest and forest edge. Occasionally ranges over nearby open country. Perches in tree crowns, sometimes conspicuously, and sometimes hunts in grassy clearings

Reproduction

Little information. One nests was in epiphytes about 20 m high on a large limb of a huge forest tree. Recently-fledged young have been reported in August, suggesting breeding from May to August. Clutch size is probably 1 egg.

Feeding habits

The diet consists mainly of birds, lizards, snakes and mammals. Presumably still-hunts from a perch, like other Nisaetus species, but may also snatch prey from the canopy

Video Sulawesi Hawk-Eagle

httpv://www.youtube.com/watch?v=2LH88nKAJT4

copyright: Josep del Hoyo


Conservation

This species has a very 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.
Like all forest eagles in Southeast Asia, it suffers from habitat loss in many areas, and it is often shot by farmers because it preys upon chickens and pets.
Sulawesi Hawk-Eagle status Least Concern

Migration

Non-migratory, but juveniles disperse from breeding areas

Distribution map

Sulawesi Hawk-Eagle distribution range map

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