Namaqua Sandgrouse
Pterocles namaqua
A dumpy, short-legged, pigeon-like bird that shuffles awkwardly on the ground and flies in a fast and direct manner, singly or in groups. It has a long, pointed tail and sharply-pointed wings. The male has a pair of black-and-white bands across the chest and has a plain buffy face and head; the female is mottled with black, brown, and white..Namaqua Sandgrouse is nomadic in desert, semi-desert, and arid savanna. It feeds on grass seed and can frequently be seen coming to drink in the early morning or at dusk. Call a far-carrying, tremulous, musical “Kelkiw-wyn”.
识别特征
The sandgrouse is a medium-sized bird with a plump body, small head and short legs. It grows to a length of about 28 centimetres (11 in). The male has an orangish buff head, throat and chest delineated by a conspicuous narrow band of white and dark brown. The back and wings are mottled brown with large white specks and there are two long black filaments extending from the olive-brown tail. The colouring of the female and juvenile is more cryptic being generally various shades of brown patterned with white specks. It could be confused with the double-banded sandgrouse (Pterocles bicinctus) and Burchell's sandgrouse (Pterocles burchelli), which share the same range.
分类信息
The Namaqua sandgrouse was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with all the grouse like birds in the genus Tetrao and coined the binomial name Tetrao namaqua. Gmelin based his description on the "Namaqua grous" that had been described in 1783 by the English ornithologist John Latham in his A General Synopsis of Birds. The Namaqua sandgrouse is now placed with 13 other species in genus Pterocles that was introduced in 1815 by the Dutch zoologist Coenraad Jacob Temminck. The genus name combines the Ancient Greek pteron meaning "wing" with -klēs meaning "notable" or "splendid". The specific epithet namaqua is from Namaqualand, a region in Namibia and South Africa, the type locality. The species is monotypic: no subspecies are recognised.
- 学名
- Pterocles namaqua
- 命名信息
- (Gmelin, JF, 1789)
- 目
- Pterocliformes
- 科
- Pteroclidae
- 属
- Pterocles
分布与栖息地
The Namaqua sandgrouse can be found in various arid parts of South Africa and its neighbouring lands. It is common in the Kalahari Desert, the Nama Karoo (in central and western South Africa), and in parts of the Western Cape. In addition, it is also found in Namibia (especially in the Namib Desert), Zimbabwe, Botswana and Angola.<p>It favours deserts and other arid areas. In order to survive, this bird needs only seeds, some gravel, and easy access to some sort of fresh water source. Their habitat usually has rough vegetation and tussock-type grasses.
- 迁徙
- Complete migrants
行为
Migration pattern: Complete migrants.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Siberian Crane
Leucogeranus leucogeranus
Rare and declining, but still fairly abundant at its main wintering grounds at Poyang Lake, in China’s Jiangxi Province. Adult is unmistakable with all-white plumage, save for a crimson face and black wingtips. Juveniles are whitish, with a light brown head, neck, back, and wings. Typically found around lake edges and fields, where it forages in small to medium-sized groups, primarily for plant matter and invertebrates.
Hispaniolan Lizard-Cuckoo
Coccyzus longirostris
An impressive long-tailed species of wooded habitats including shade coffee plantations. Typically found foraging in dense vegetation from understory to canopy; can be found sunning in the open at first light with its tail spread. Note this species long straight narrow bill, brilliant red eyering, gray chest, and buff-orange belly. The Bay-breasted Cuckoo is similarly shaped but is larger with a maroon chest and short curved bill. The Mangrove Cuckoo is smaller with a smaller curved bill and a black mask. Secretive, but not shy, this species is often first detected by its voice: a long, rapid, ratcheting “keh-keh-keh…” Also gives a low “craaa” and a sharp “chek.”
Bicolored Antvireo
Dysithamnus occidentalis
Small, plump antbird of Andean cloud forest. Very rare in Ecuador and northern Peru, but somewhat more common in western Colombia. Male is dark gray; female additionally has chestnut back and crown. Both sexes have white dots on wings; on some birds, these dots may form parallel lines. Inhabits understory of forest interior. Usually first detected by voice; vocalizations include soft churrs, rattles, and inflected notes given alone or in a quick series.
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。