Rufous-capped Motmot
Baryphthengus ruficapillus
Large odd-looking bird with a long tail often swung from side to side or even held cocked when agitated. Usually sits quietly in the midstory and is easy to miss. The body is blue and green, with a black mask, and an orange cap and belly. Normally vocalizes at dawn and dusk an owl-like “hoo-oo-oo-oo-oo.” Nests in burrows.
识别特征
The rufous-capped motmot is 42 cm (17 in) long and weighs 140 to 151 g (4.9 to 5.3 oz). The adults are mostly green above and olive-green below. The crown and nape are rufous and a black "mask" has a turquoise border. The chest has a black spot, there is a rufous band across the belly, and the lower belly is blue-green. The juvenile is similarly colored but duller.
分类信息
The rufous-capped motmot and rufous motmot (Baryphtengus martii) are the only two species in their genus, and have sometimes been treated as conspecific. The rufous-capped motmot is monotypic. Though subspecies have been proposed within its Brazilian population, the differences have been shown to be simply individual variation.
- 学名
- Baryphthengus ruficapillus
- 命名信息
- (Vieillot, 1818)
- 目
- Coraciiformes
- 科
- Momotidae
- 属
- Baryphthengus
分布与栖息地
The rufous-capped motmot is found across southeastern Brazil, in eastern Paraguay, and in far northeastern Argentina. It inhabits primary and gallery forest, the latter mostly along watercourses. It ranges in elevation from near sea level to 1,200 m (3,900 ft).
- 迁徙
- Resident species
行为
The rufous-capped motmot's diet is cosmopolitan. It includes insects and their larvae; spiders; snails; small reptiles, mammals, and birds; and to a lesser degree fruits. The species has been observed following army ants to capture what they disturb and also sometimes forages in mixed-species flocks.<p>The rufous-capped motmot nests in a burrow in an earth bank; it either digs its own or uses an abandoned burrow dug by another animal such as an armadillo. The burrow can be more than 1 m (3.3 ft) long. The species lays two or three eggs, probably in September and October based on when nestlings and young have been observed. Both sexes feed the young.<p>The rufous-capped motmot vocalizes mostly before dawn and at dusk. Its makes a "series of 'hoo-oo-oo-oo-oo' notes" that have been compared to owl calls [1].
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
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Driophlox gutturalis
Rather large, chunky tanager endemic to northwestern Colombia. Unlikely to be mistaken. Male isall sooty gray with striking red throat and crest. Female is similar to male but slightly duller. Occurs in the lowlands up to around 1,100 m. Typically seen in pairs or small groups in the understory of forest, often near water. Frequently follows mixed-species flocks.
White-headed Vulture
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Muscisaxicola maclovianus
Small and rather distinctive terrestrial flycatcher, breeding in the southern Andes at high elevation and migrating north in winter where it can also be found in lowlands. Breeds in open rocky areas, sometimes down to level of open forest. Migrants often in flocks, sometimes a few hundred birds, as on playing fields and beaches. Upperparts relatively dark gray with blackish face mask, and an inconspicuous dark rusty nape patch. Resident Falkland population larger and plainer overall, likely a different species; found on moorland and beaches.
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