Rahul Sharma

Greyish eagle owl

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Kingdom  Animalia
Order  Strigiformes
Genus  Bubo
Higher classification  Horned owl
Phylum  Chordata
Family  Strigidae
Scientific name  Bubo cinerascens
Rank  Species

Similar  Owl, Bird, Horned owl, Shelley's eagle‑owl, Akun eagle‑owl

The greyish eagle-owl or vermiculated eagle-owl (Bubo cinerascens) is a rather large owl of the northern part of sub-Saharan Africa. It was previously regarded as the northern form of the spotted eagle-owl.

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Greyish eagle-owl Greyish EagleOwl BirdForum Opus

Description

Greyish eagle-owl Mystery bird Greyish eagleowl Bubo cinerascens GrrlScientist

This species is about 43 centimetres (17 in) long and weighs about 500 grams (1.1 lb). Like the spotted eagle-owl, the greyish eagle-owl has mottled dark brown, buff, and white upperparts and finely barred (vermiculated) underparts giving a greyish-brown appearance. It differs from the spotted eagle-owl in having dark brown (not yellow) eyes and a brownish facial disk marked with a heavy brown circle around each eye. It also has morphological differences, such as being lighter though about the same length and having shorter tarsi.

Voice

Greyish eagle-owl httpsuploadwikimediaorgwikipediacommons77

As the greyish eagle-owl was considered the northern form of the spotted eagle-owl until recently their vocalisations have not been well studied. The call of the male recorded in West Africa consisted of two clear syllables and has been rendered as "koo-whoo" where the "koo" part is rather explosive and the "whoo" is somewhat downward inflected, lower pitched and extended.This call is made every few seconds and is thus not similar to that of the spotted eagle owl.

Distribution and habitat

It is found in the northern part of sub-Saharan Africa from Mauretania and Liberia east to Sudan and Somalia. Its habitats include dry rocky deserts and open savannah, as well as lowland forests in Somalia.

Biology

Greyish eagle-owl Photos of Greyish Eagleowl Bubo cinerascens the Internet Bird

Roosts during the day hidden and sites used vary from rocky natural sites such as cliff crevices and boulders, man made sites or in bushes or trees. It feeds on larger insects and other large arthropods as well as vertebrates. It usually hunts from a perch, using a sit and wait technique but may also hawk insects in flight, sometimes bats too. The breeding biology is probably similar to the spotted eagle-owl. It lays 2-3 eggs in a scrape on the ground or among rocks or in a sheltered cliff site, although it will sometimes reuse the old platform-like nests of larger birds in trees.

Taxonomic note

Greyish eagle-owl Greyish Eagleowl Bubo cinerascens Side view of an adult looking

It is closely related to the spotted eagle-owl, of which is it sometimes considered the northern subspecies, B. africanus cinerascens. In the area of overlap with the spotted eagle-owl, in Kenya and the Horn of Africa the two species are not known to interbreed.


Greyish eagle-owl Greyish Eagleowl Bubo cinerascens Adult looking over its shoulder

References

Greyish eagle-owl Wikipedia


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