Tawny-throated Dotterel
Oreopholus ruficollis
Handsome and distinctive plover of windswept open grasslands and sandy dunes from Patagonian steppe to the high Andes; also ranges to agricultural fields, mainly during migration and winter. Mostly uncommon and often rather local. Usually found as pairs or small groups, running well and blending in easily with its grassy steppe habitat. Note the elegant, tall-standing posture, bold face pattern, straight pointed bill, bright rusty throat, and striped back. No similar species.
识别特征
The tawny-throated dotterel is 25 to 29 cm (9.8 to 11 in) long and weighs 120 to 154 g (4.2 to 5.4 oz). The sexes are alike and have no seasonal changes in plumage. Adults of the nominate subspecies are mostly rich buff, with heavy dark streaking on the back. They have a white chin, an orange-tawny throat, gray neck and breast, and a small black patch on the belly. Their white underwing shows in flight. Juveniles have a buff throat, less dense streaking on the back, and paler underparts with a brown belly patch. Subspecies O. r. pallidus is very similar to the nominate but smaller and overall paler.
分类信息
The tawny-throated dotterel is the only living member of its genus, though an extinct species O. orcesi is known from fossil remains. It has two subspecies, the nominate O. r. ruficollis and O. r. pallidus. Some authors have suggested that the two deserve further investigation because they have different plumage .
- 学名
- Oreopholus ruficollis
- 命名信息
- (Wagler, 1829)
- 目
- Charadriiformes
- 科
- Charadriidae
- 属
- Oreopholus
分布与栖息地
Subspecies O. r. pallidus of the tawny-throated dotterel has a limited range; it is found in coastal northern Peru only as far south as the Department of La Libertad. What is assumed to be this subspecies has been recorded as a vagrant in Ecuador. The nominate subspecies is found from southern Peru south through western Bolivia, Chile, and western Argentina into Tierra del Fuego and east through southern Argentina into Uruguay and southern Brazil. It has also been recorded as a vagrant on the Falkland Islands.<p>The tawny-throated dotterel inhabits grasslands, heath shrublands, and fields and meadows. The nominate subspecies is found in the puna of the Andes as high as 4,600 m (15,100 ft). O. r. pallidus is found on the coastal plain of Peru.
- 繁殖区
- SA : coastal and inland n Peru to Tierra del Fuego
- 非繁殖区
- to coastal Uruguay and se Brazil
- 迁徙
- Complete migrants
行为
Migration pattern: Complete migrants.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
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