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Grey crowned crane
The grey crowned crane or gray crowned crane (Balearica regulorum) is a large crane species native to Sub-Saharan Africa. It occurs mainly in dry savannah, although it nests in somewhat wetter habitats, and can also be found in marshes, cultivated lands and grassy flatlands near rivers and lakes. Its body plumage is mainly grey and it has white cheeks, a red throat patch, and a stiff golden crown. It is omnivorous, consuming a wide variety of animal and plant matter, including plants, seeds, grain, insects, frogs, worms, snakes, small fish and the eggs of aquatic animals. It is listed as endangered on the IUCN Red List. It is the National bird of Uganda
Other names for the species include African crowned crane, golden crested crane, golden crowned crane, East African crane, East African crowned crane, African crane, Eastern crowned crane, Kavirondo crane, South African crane, and crested crane. It is closely related to the black crowned crane, and the two species have sometimes been treated as the same species. The two are separable on the basis of genetic evidence, calls, plumage, and bare parts, and all authorities treat them as different species today.
There are two subspecies. The East African B. r. gibbericeps (crested crane) occurs in the east of the Democratic Republic of the Congo and in Uganda, of which it is the national bird represented in its national flag, and Kenya to eastern South Africa. It has a larger area of bare red facial skin above the white patch than the smaller nominate species, B. r. regulorum (South African crowned crane), which breeds from Angola south to South Africa.
The grey crowned crane is approximately 1 m (3 ft 3 in) tall, weighs 3.5 kg (7.7 lb), and has a wingspan of 2 m (6 ft 7 in). Its body plumage is mainly grey. The wings are predominantly white, dark grey and dark red with a golden yellow patch. 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. They have long legs for wading through the grasses. The feet are large, yet slender, adapted for balance rather than defence or grasping. The sexes are similar, although males tend to be slightly larger. Younger cranes are greyer than adults, with a feathered buff face.
This species and the black crowned crane are the only cranes that can roost in trees, because of a long hind toe that can grasp branches. This trait is assumed to be an ancestral trait among the cranes, which has been lost in the other subfamily. Crowned cranes also lack a coiled trachea and have loose plumage compared to the other cranes.
The grey crowned crane occurs in dry savannah in Sub-Saharan Africa, although it nests in somewhat wetter habitats. They can also be found in marshes, cultivated lands and grassy flatlands near rivers and lakes in Uganda and Kenya and as far south as South Africa. This animal does not have set migration patterns, and birds nearer the tropics are typically sedentary. Birds in more arid areas, particularly Namibia, make localised seasonal movements during drier periods.
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. Both sexes dance, and immature birds join the adults. Dancing is an integral part of courtship, but also may be done at any time of the year.
Flocks of 30–150 birds are not uncommon.
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Grey crowned crane
The grey crowned crane or gray crowned crane (Balearica regulorum) is a large crane species native to Sub-Saharan Africa. It occurs mainly in dry savannah, although it nests in somewhat wetter habitats, and can also be found in marshes, cultivated lands and grassy flatlands near rivers and lakes. Its body plumage is mainly grey and it has white cheeks, a red throat patch, and a stiff golden crown. It is omnivorous, consuming a wide variety of animal and plant matter, including plants, seeds, grain, insects, frogs, worms, snakes, small fish and the eggs of aquatic animals. It is listed as endangered on the IUCN Red List. It is the National bird of Uganda
Other names for the species include African crowned crane, golden crested crane, golden crowned crane, East African crane, East African crowned crane, African crane, Eastern crowned crane, Kavirondo crane, South African crane, and crested crane. It is closely related to the black crowned crane, and the two species have sometimes been treated as the same species. The two are separable on the basis of genetic evidence, calls, plumage, and bare parts, and all authorities treat them as different species today.
There are two subspecies. The East African B. r. gibbericeps (crested crane) occurs in the east of the Democratic Republic of the Congo and in Uganda, of which it is the national bird represented in its national flag, and Kenya to eastern South Africa. It has a larger area of bare red facial skin above the white patch than the smaller nominate species, B. r. regulorum (South African crowned crane), which breeds from Angola south to South Africa.
The grey crowned crane is approximately 1 m (3 ft 3 in) tall, weighs 3.5 kg (7.7 lb), and has a wingspan of 2 m (6 ft 7 in). Its body plumage is mainly grey. The wings are predominantly white, dark grey and dark red with a golden yellow patch. 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. They have long legs for wading through the grasses. The feet are large, yet slender, adapted for balance rather than defence or grasping. The sexes are similar, although males tend to be slightly larger. Younger cranes are greyer than adults, with a feathered buff face.
This species and the black crowned crane are the only cranes that can roost in trees, because of a long hind toe that can grasp branches. This trait is assumed to be an ancestral trait among the cranes, which has been lost in the other subfamily. Crowned cranes also lack a coiled trachea and have loose plumage compared to the other cranes.
The grey crowned crane occurs in dry savannah in Sub-Saharan Africa, although it nests in somewhat wetter habitats. They can also be found in marshes, cultivated lands and grassy flatlands near rivers and lakes in Uganda and Kenya and as far south as South Africa. This animal does not have set migration patterns, and birds nearer the tropics are typically sedentary. Birds in more arid areas, particularly Namibia, make localised seasonal movements during drier periods.
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. Both sexes dance, and immature birds join the adults. Dancing is an integral part of courtship, but also may be done at any time of the year.
Flocks of 30–150 birds are not uncommon.