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Thick-billed Raven

 
Thick Billed Raven

 
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Thick-billed Raven
 
 
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The Thick-billed Raven (Corvus crassirostris), a Corvid
Corvidae

Corvidae is a Cosmopolitan distribution family of oscine passerine birds that contains the crows, ravens, rook s, jackdaws, jays, magpies, treepies, Pyrrhocorax and nutcracker ....
 from the Horn of Africa
Horn of Africa

The Horn of Africa is a peninsula in East Africa that juts for hundreds of kilometers into the Arabian Sea, and lies along the southern side of the Gulf of Aden....
, shares with the Common Raven
Common Raven

The Common Raven , also known as the Northern Raven, is a large all-black passerine bird in the Corvidae. Found across the northern hemisphere, it is the most widely distributed of all Corvidae....
 the distinction of being the largest in the family (60-64 cm in length and 1.5 kg) and indeed the largest of the bird
Bird

Birds are wing, Bipedalismal, endothermic , vertebrate animals that lay egg . There are around 10,000 living species, making them the most numerous tetrapod vertebrates....
 order Passeriformes (perching birds). It has a very large bill that is laterally compressed and is deeply curved in profile giving the bird a very distinctive appearance. This bill is black with a white tip and has deep nasal grooves with only light nasal bristle covers.

It has very short feathers on the head, throat and neck which on the throat and upper breast, have an oily brown gloss.






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The Thick-billed Raven (Corvus crassirostris), a Corvid
Corvidae

Corvidae is a Cosmopolitan distribution family of oscine passerine birds that contains the crows, ravens, rook s, jackdaws, jays, magpies, treepies, Pyrrhocorax and nutcracker ....
 from the Horn of Africa
Horn of Africa

The Horn of Africa is a peninsula in East Africa that juts for hundreds of kilometers into the Arabian Sea, and lies along the southern side of the Gulf of Aden....
, shares with the Common Raven
Common Raven

The Common Raven , also known as the Northern Raven, is a large all-black passerine bird in the Corvidae. Found across the northern hemisphere, it is the most widely distributed of all Corvidae....
 the distinction of being the largest in the family (60-64 cm in length and 1.5 kg) and indeed the largest of the bird
Bird

Birds are wing, Bipedalismal, endothermic , vertebrate animals that lay egg . There are around 10,000 living species, making them the most numerous tetrapod vertebrates....
 order Passeriformes (perching birds). It has a very large bill that is laterally compressed and is deeply curved in profile giving the bird a very distinctive appearance. This bill is black with a white tip and has deep nasal grooves with only light nasal bristle covers.

It has very short feathers on the head, throat and neck which on the throat and upper breast, have an oily brown gloss. The rest of the bird is glossy black except for a distinctive white patch of short feathers on the nape and onto the neck.

Distribution and habitat

Its range covers Eritrea
Eritrea

Eritrea , officially the Country of Eritrea, is a country in Northeast Africa. It is bordered by Sudan in the west, Ethiopia in the south, and Djibouti in the southeast....
, Somalia
Somalia

Somalia , officially the Republic of Somalia and formerly known as the Somali Democratic Republic, is a country located in the Horn of Africa....
 and Ethiopia
Ethiopia

Ethiopia , officially the Federal Democratic Republic of Ethiopia, is a landlocked country situated in the Horn of Africa. Ethiopia is bordered by Eritrea to the north, Sudan to the west, Kenya to the south, Somalia to the east and Djibouti to the northeast....
; its habitat includes mountain
Mountain

A mountain is a landform that stretches above the surrounding land in a limited area usually in the form of a peak. A mountain is generally steeper than a hill....
s and high plateau
Plateau

In geology and earth science, a plateau, also called a high plateau or tableland, is an area of highland , usually consisting of relatively flat terrain....
 between elevations of 1500 to 3400 metres.

Behaviour


Diet

The Thick-billed Raven is omnivorous, feeding on grubs, beetle larvae from animal dung, carrion, scraps of meat, and other human foods. It has been seen taking standing wheat. When seeking food from dung, it has been seen using a distinct scything movement to scatter the dung and extract the grubs.

Nesting

It nests in tree
TREE

TREE was a Boston hardcore punk band formed in the summer of 1990. They were active in the Boston music scene until disbanding in 2002....
s and on cliff
Cliff

In geography and geology, a cliff is a significant vertical, or near vertical, rock exposure. Cliffs are formed as erosion landforms due to the processes of erosion and weathering that produce them....
s, apparently building a stick nest
Bird nest

A bird nest is the spot in which a bird lays and Avian incubation its egg and raises its young. While the term popularly refers to a specific structure made by the bird itself?such as the grassy cup nest of the American Robin or Eurasian Blackbird, or the elaborately woven hanging nest of the Montezuma Oropendola, the Village Weaver or the...
 like the similar White-necked Raven
White-necked Raven

The 'White-necked Raven', Corvus albicollis, is somewhat smaller than the Common Raven or indeed its nearest relative, the Thick-billed Raven C....
. It lays three to five egg
Egg (biology)

In most birds and reptiles, an egg is the zygote, resulting from fertilization of the ovum. To enable incubation the egg is usually kept within a favourable temperature range as it nourishes and protects the growing embryo....
s.

Voice

Its calls include a harsh nasal croak or a low wheezy croak or sometimes a "raven-raven" sometimes their call is a "dink,dink,dink" sound.

External image links



Video links

  • on the Internet Bird Collection