White-headed Mousebird
Encyclopedia
The White-headed Mousebird (Colius leucocephalus) is a bird
belonging to the mousebird
family, Coliidae. It is found only in east Africa
where it occurs in southern Somalia
and parts of Kenya
with its range just extending into southern Ethiopia
and northern Tanzania
. It inhabits arid bushland up to 1,400 metres above sea-level.
It is 32 cm long with the long, graduated tail accounting for over half of this. The plumage
is mainly greyish with black and white barring on the back, neck and breast. It has a white crest, crown and cheeks. There is a white stripe down the back which becomes visible when the bird flies. Around the eye is a patch of dark, bare skin. The bill
is bluish-white above and buff below. In juvenile
birds, the throat and breast are buff. The northern subspecies
(C. l. turneri) is darker than the southern form (C. l. leucocephalus).
The contact call is a scratchy chattering and the bird also has a descending song
.
Bird
Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...
belonging to the mousebird
Mousebird
The mousebirds are a small group of birds which have no known close affinities to other groups, though they and the parrots and cockatoos may be closer to each other than to other birds. The mousebirds are therefore given order status as Coliiformes...
family, Coliidae. It is found only in east Africa
Africa
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...
where it occurs in southern Somalia
Somalia
Somalia , officially the Somali Republic and formerly known as the Somali Democratic Republic under Socialist rule, is a country located in the Horn of Africa. Since the outbreak of the Somali Civil War in 1991 there has been no central government control over most of the country's territory...
and parts of Kenya
Kenya
Kenya , officially known as the Republic of Kenya, is a country in East Africa that lies on the equator, with the Indian Ocean to its south-east...
with its range just extending into southern Ethiopia
Ethiopia
Ethiopia , officially known as the Federal Democratic Republic of Ethiopia, is a country located in the Horn of Africa. It is the second-most populous nation in Africa, with over 82 million inhabitants, and the tenth-largest by area, occupying 1,100,000 km2...
and northern Tanzania
Tanzania
The United Republic of Tanzania is a country in East Africa bordered by Kenya and Uganda to the north, Rwanda, Burundi, and the Democratic Republic of the Congo to the west, and Zambia, Malawi, and Mozambique to the south. The country's eastern borders lie on the Indian Ocean.Tanzania is a state...
. It inhabits arid bushland up to 1,400 metres above sea-level.
It is 32 cm long with the long, graduated tail accounting for over half of this. The plumage
Plumage
Plumage refers both to the layer of feathers that cover a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage vary between species and subspecies and can also vary between different age classes, sexes, and season. Within species there can also be a...
is mainly greyish with black and white barring on the back, neck and breast. It has a white crest, crown and cheeks. There is a white stripe down the back which becomes visible when the bird flies. Around the eye is a patch of dark, bare skin. The bill
Beak
The beak, bill or rostrum is an external anatomical structure of birds which is used for eating and for grooming, manipulating objects, killing prey, fighting, probing for food, courtship and feeding young...
is bluish-white above and buff below. In juvenile
Juvenile (organism)
A juvenile is an individual organism that has not yet reached its adult form, sexual maturity or size. Juveniles sometimes look very different from the adult form, particularly in terms of their colour...
birds, the throat and breast are buff. The northern subspecies
Subspecies
Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...
(C. l. turneri) is darker than the southern form (C. l. leucocephalus).
The contact call is a scratchy chattering and the bird also has a descending song
Bird song
Bird vocalization includes both bird calls and bird songs. In non-technical use, bird songs are the bird sounds that are melodious to the human ear. In ornithology and birding, songs are distinguished by function from calls.-Definition:The distinction between songs and calls is based upon...
.