Buff-crested Bustard
Lophotis gindiana
A fairly small bustard of thick brush in dry country. The male has a buff crest that is usually hidden, and both sexes have a black belly. Found in dry savanna and thornscrub habitat with lots of bushes, unlike most bustards, which prefer grass-dominated habitats. Similar to Black-bellied and Hartlaub’s Bustards, but smaller, and prefers different habitats. Larger than Little Brown Bustard, with a black belly. The call is a rising and accelerating series of distressed-sounding notes that often precede the display: a quick flight up, then a plummet to the ground.
识别特征
The buff-crested bustard is a medium-sized East African bird that can reach up to 60 cm or 24 inches in height. Compared to other African bustards, this species is relatively small. Male buff-crested bustards weigh between 675 and 900 grams. Mature males display a black stripe that extends from the throat to the breast. The male plumage is grey or buff, except for the black stripe and dark underside of the body. Most bustards of this family are sexually dimorphic; the male and female differ in plumage coloration and size. On the female, the line visible on the throat is duller and the overall grey coloration seen in the male is replaced by a light brown. As a result of ground-dwelling behaviour, the birds lack a hind toe and do not perch. The species gets its name from the coloured feather crest shown in males, but which is not present in females. When the bird's wings are extended, a large white patch is visible under each wing.
分类信息
The buff-crested bustard (Lophotis gindiana) belongs to the family Otididae within the order Gruiformes. Otididae, or the bustard family, contains 25 species of extant bustards. The Lophotis genus includes the Savile's bustard, red-crested bustard (or red-crested korhaan), and buff-crested bustard. These three species are sometimes considered as conspecifics due to physical and behavioural similarities. The buff-crested bustard is sometimes referred to as Eupodotis ruficrista gindiana, referencing to the genus it was previously assigned to when considered a subspecies of the red-crested bustard. Recent genetic analysis rejects the combined supergenus Eupodotis, and considers the genera Lophotis a distinct lineage outside of Eupodotis.
- 学名
- Lophotis gindiana
- 命名信息
- (Oustalet, 1881)
- 目
- Otidiformes
- 科
- Otididae
- 属
- Lophotis
分布与栖息地
Although they exist throughout East Africa, buff-crested bustards are most common in Ethiopia. There, they can be seen throughout the southern regions, east of the Rift Valley. The bird is a non-migrating resident in Sudan, Somalia, Eritrea, Uganda, Tanzania, and Kenya. The buff-crested bustard is sedentary and can be found in thorny scrub and arid stony desert habitats. In Kenya, it favours arid to semiarid climates, and is absent from sub-humid areas in the coastal strip. It is different from most bustards in that it is less likely to be seen in high grasses, preferring ecosystems established on stony or sandy soils. The female's coloration offers optimal camouflage in these habitats.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
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