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Grey Crowned Crane (Balearica regulorum) - Wiki
Subject: Grey Crowned Crane (Balearica regulorum) - Wiki
Grey Crowned Crane (Balearica regulorum) 7.jpg
Resolution: 2500x2235 File Size: 1168345 Bytes Date: 2007:10:13 21:41:40 Upload Date: 2007:10:13 21:45:49

Grey Crowned Crane (Balearica regulorum) - Wiki


Grey Crowned Crane
From Wikipedia, the free encyclopedia

[Photo] Grey Crowned Crane (Balearica regulorum). Date 2007. Author Mila (http://home.comcast.net/~milazinkova/Fogshadow.html).
Copyright (C) 2007 Mila Zinkova
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".


Grey Crowned Crane (Balearica regulorum) is a bird in the crane family Gruidae. It occurs in dry savannah in Africa south of the Sahara, although it nests in somewhat wetter habitats.

There are two subspecies. The East African B. r. gibbericeps (Crested Crane) occurs from eastern Democratic Republic of the Congo through Uganda, of which it is the national bird, and Kenya to eastern South Africa. It has a larger area of bare red facial skin above the white patch than the smaller Balearica regulorum regulorum (South African Crowned Crane) which breeds from Angola south to South Africa.

This species and the closely related Black Crowned Crane are the only cranes that can roost in trees, because of a long hind toe that can grasp branches. This habit, amongst other things, is a reason why the relatively small Balearica cranes are believed to closely resemble the ancestral members of the Gruidae.

The Grey Crowned Crane has a breeding display involving dancing, bowing, and jumping. It has a booming call which involves inflation of the red gular sac. It also makes a honking sound quite different from the trumpeting of other crane species.

The nest is a platform of grass and other plants in tall wetland vegetation. The Grey Crowned Crane lays a clutch of 2-5 eggs. Incubation is performed by both sexes and lasts 28-31 days. Chicks fledge at 56-100 days.

The Grey Crowned Crane is about 1 m (3.3 ft) tall and weighs 3.5 kg (7.7 lbs). Its body plumage is mainly grey. The wings are also predominantly white, but contain feathers with a range of colours. The head has a crown of stiff golden feathers. The sides of the face are white, and there is a bright red inflatable throat pouch. The bill is relatively short and grey, and the legs are black. The sexes are similar, although males tend to be slightly larger. Young birds are greyer than adults, with a feathered buff face. Like all cranes, it feeds on insects, reptiles and small mammals.

Although the Grey Crowned Crane remains common over much of its range, it faces threats to its habitat due to drainage, overgrazing, and pesticide pollution.

The Grey Crowned Crane is the national bird of Uganda and features in the country's flag and coat of arms.

http://en.wikipedia.org/wiki/Grey_Crowned_Crane
The text in this page is based on the copyrighted Wikipedia article shown in above URL. It is used under the GNU Free Documentation License. You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.

Comments
Guest
회색관두루미(grey crowned crane, Balearica regulorum)는 아프리카의 사바나 지역에 서식하는 두루미과의 새이다.

Gruidae
9/45
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