Double-banded Sandgrouse
Pterocles bicinctus
A plump, small-headed, pigeon-like bird. At close range the male is identified by a combination of black-and-white bands just above bill and by a strong yellow eye-ring; the female is mottled with black, brown, and white. It prefers using patches of recently-burnt grassland near rocky areas in savanna. Largely inactive by day; large numbers synchronously gather at waterholes to drink, call, and socialize briefly at dusk before dispersing to forage throughout the night. Its distinctive calls are squeaky and bubbling: “oh NO, he’s gone and done it AGAIN!”.
识别特征
A moderately-sized, quail-like bird with a plump body, the double-banded sandgrouse has a small, almost pigeon-like head with a long pair of wings and tail. The general colour of the plumage is light brown, with darker mottling and rows of whitish specks; the male is distinguished by having a conspicuous black-and-white band on his forehead, with a chestnut-coloured throat that is delineated by another black-and-white band. Both sexes have an area of bare, yellow skin surrounding their eyeball, and the male has an orange beak. The female is smaller and a more dull-brown in colour. The juveniles resemble the female.
分类信息
Genus: Pterocles; Family: Pteroclidae; Order: Pterocliformes.
- 学名
- Pterocles bicinctus
- 命名信息
- Temminck, 1815
- 目
- Pterocliformes
- 科
- Pteroclidae
- 属
- Pterocles
分布与栖息地
The double-banded sandgrouse is found in Angola, Botswana, Malawi, Mozambique, Namibia, South Africa, Zambia and Zimbabwe. It has a preference for short trampled grass beside roads and tracks, gravel patches, tussocky grassland and recently burned areas of scrub with green shoots starting to develop. It is also seen in areas of scanty vegetation beneath scattered Terminalia sericea and Burkea africana trees and in scrubby mopane woodland. It is less common than Burchell's sandgrouse (Pterocles burchelli) and Namaqua sandgrouse (Pterocles namaqua), both of which have an overlapping distribution in southern Africa.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
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Leptasthenura aegithaloides
Widespread and often fairly common in southern South America. Found in varied habitats from Patagonian shrub-steppe to parks and gardens to high Andean puna shrub-grassland to lowland desert scrub. Often in pairs, foraging low to high from weedy brush and shrubs to tree canopy; agile and often active, clinging upside down at tips of branches. Identified by streaky face, mostly plain back, and very long spiky-tipped tail. Voice varies regionally and multiple cryptic species are likely involved.
Smith's Longspur
Calcarius pictus
Sparrowlike ground dweller; crouches low to the ground and walks with pattering footsteps. Breeding male is a unique deep yellow-orange with black-and-white head pattern. Females and nonbreeding birds are more subtle but typically buffier than other longspurs. Also look for long wingtips, thin white eyering, and blurry streaks below. Breeds on Arctic tundra. In winter, look for small flocks in fields with short grass and exposed soil. Not found in mixed flocks. Rattle call similar to Lapland Longspur.
Common Grasshopper Warbler
Locustella naevia
Extremely skulky warbler. Plumage dark gray-brown overall with wide black streaks on back; also note long undertail coverts with big dark centers. Favors damp grassy thickets, heaths, and other rank shrubby habitats, often near water. Very skulking, and rarely seen unless singing. Sings from perch in grass or low bush, mainly late in the day (sometimes at night): a prolonged, insectlike, reeling trill. Calls include a high-pitched “pik.”
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