Striped Owl
Asio clamator
Fairly large, pale, eared owl with honey-colored eyes. Favors savannas and other open areas with scattered trees and bushes, such as cane fields and open plantations. Roosts in dense foliage or on the ground, but often hunts from roadside perches such as utility wires. Note the prominent ear tufts (rarely held flattened), whitish face rimmed with black, and whitish underparts with neat dark streaking. Compare with Short-eared Owl.
识别特征
The striped owl is a relatively large species with prominent tufts of elongated feathers on the crown resembling ears. It is 30–38 cm (12–15 in) long and weighs from 320 to 546 g (11.3 to 19.3 oz). Its head, back, hot wings and tail are brown with black stripes and small markings while its underparts are buff-coloured with heavy black streaking on the breast. The facial disk is pure white with a thin black border.
分类信息
The striped owl was formally described by the French ornithologist Louis Pierre Vieillot in 1808 under the binomial name Bubo clamator. The specific epithet clamator is Latin meaning "shouter". The type locality is Cayenne in French Guiana. The striped owl was at one time placed in its own genus Rhinoptynx and was then transferred to the genus Pseudoscops. A molecular study that compared mitochondrial DNA sequences indicated that it should be placed in the genus Asio. This result was confirmed by a large molecular phylogenetic study of the owls published in 2019.
- 学名
- Asio clamator
- 命名信息
- (Vieillot, 1808)
- 目
- Strigiformes
- 科
- Strigidae
- 属
- Asio
分布与栖息地
The striped owl is native to much of South and Central America. Its range is not well known, perhaps because it is nocturnal and not easily seen, but it is known from Argentina, Belize, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Suriname, Trinidad and Tobago, Uruguay and Venezuela. It uses a variety of habitats, including riparian woodlands, marshes, savannahs, grassy open areas, and tropical rainforests. It can be found from sea level to an altitude of 1,600 m (5,200 ft) and above.
- 迁徙
- Resident species
保护状况
The striped owl has a very large range and its population is believed to be stable. It faces no particular threats and is classified by the IUCN as least concern.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Painted Quail-thrush
Cinclosoma ajax
A medium-sized and localised ground-dwelling bird of foothill forest and lowland gallery forest. Brown tail, back and crown stripe, black mask, white belly and rufous sides. Male has a black throat and chest, and an obvious white stripe on the face, whereas the female has a white throat and thin whitish eye-brow. Overlaps with the similar-sized Blue and Chestnut-backed Jewel-babblers but Painted Quail-thrush lacks any blue plumage. Song, three descending whistles, 2 short and 1 long, followed by an explosive “Whip!”.
Brown Babbler
Turdoides plebejus
A dull brownish babbler with brightly colored eyes. Found in moist woodland, dense savanna, scrub, gallery forest, forest edge, cultivated areas, and gardens, almost always in groups that forage actively on the ground. Similar in shape, size, and overall brown coloration to Arrow-marked Babbler, but there is only minor overlap in range, and Brown Babbler can be separated by the paler face and throat and the less pointed white markings on the underparts. Calls include a raspy babbling and a dry clucking, both usually by a whole group in chorus.
Ayres's Hawk-Eagle
Hieraaetus ayresii
Small black-and-white eagle. Has a compact, powerful shape, and the hint of a crest. The upperparts are black, and there are heavy black markings on the underparts and evenly across the underwing. Found in thick woodland and forest. Soars frequently. Call is a loud, repeated “kwee-ya.” Similar to other hawk-eagles, but has more heavily marked underparts. Easily separated in flight, when Ayres’s Hawk-Eagle shows black barring across the entire underwing.
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