Bare-legged Owl
Margarobyas lawrencii
A charming owl with large dark eyes, bushy white or buff eyebrows, and a buffy mustache. At night hunts woodlands or open areas with large trees; during the day roosts in tree cavities or caves. Its song is a distinctive accelerating soft “hoo-hoo-hoo-hoo-hoo…” that has a “bouncing ball” rhythm; occasionally gives a screech. No similar species within its range.
识别特征
The bare-legged owl is relatively small, measuring 20–23 cm (8–9 in) long, and weighing about 80 g (2.8 oz). Its name comes from its featherless green-yellow legs, similar to those of the burrowing owl. These owls have dark brown eyes, no ear tufts, a cream-colored facial disk, and brown rictal bristles. The upperparts of these birds are largely brown to slightly rufous in colour. Their wing feathers have white barring, and there are white spots on their shoulder and scapular feathers. The underparts are gray- to yellow-white, with some brown streaking and occasionally even cross-barring on the sides and breast.<p>Juvenile bare-legged owls have similar plumage colors to adults, but have fewer white spots.
分类信息
The bare-legged owl was described in 1800 and for a time, it was considered the same species as the Puerto Rican owl. However, it was later determined to be its own species by George Newbold Lawrence in 1868. It has variously been placed in the genera "Noctua", Gymnoglaux, and Gymnasio. The American Ornithological Society moved it to the genus Otus in 1998. However, in 2003, they moved the bird back to the genus Gymnoglaux based on physical and vocal differences between the bare-legged owl and typical screech-owls. Finally, in 2008, the genus Margarobyas was proposed, as it was found that Gymnoglaux was a junior synonym of Gymnasio.<p>There is one possible subspecies: M. l. exsul, found in western Cuba and the Isla de Juventud. It is supposedly differentiated by a darker brown color and more spots, although this subspecies is not generally recognized.<p>Margarobyas comes from the Greek margarites, a pearl, and byas, an owl. This name was given as a reference to Cuba's status as the "Pearl of the Antilles." The species name, lawrencii, is in honor of George Lawrence.
- 学名
- Margarobyas lawrencii
- 命名信息
- (Sclater, PL & Salvin, 1868)
- 目
- Passeriformes
- 科
- Turdidae
- 属
- Margarobyas
分布与栖息地
- 迁徙
- Resident species
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
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Small, attractive tanager; bright crimson and black with a black mask and silver bill. Most commonly found in vegetation around oxbow lakes, also sometimes found in nearby forests and along rivers. Sexes similar though females are slightly duller than males. Extensive crimson and black mask easily distinguish this species from other tanagers within its range.
White-browed Laughingthrush
Pterorhinus sannio
A ground-hugging, long-tailed songbird of city parks, forests, and scrubby agricultural land. Brownish above, ochre below, with striking facial pattern: black throat and rear eyeline contrast with earth-brown crown and white cheek and supercilium. Forages in small to medium-sized flocks on the ground and in dense shrubbery. Vocal; loud cackling contact calls used to communicate among flockmates.
Hartlaub's Turaco
Tauraco hartlaubi
A beautiful green turaco with dark blue wings, tail, and crown. Note the white markings on the head: a white spot in front of the eye and a white line below the eye. Like all turacos, shows large crimson wing patches in flight. Found in montane forests, lush woodlands, and gardens. Acts like a typical turaco, bouncing through the trees and flying occasionally with short bursts of wingbeats and long glides. Similar overall to other turacos, but separated from most by the dark blue crown, and from Purple-crested Turaco by the white facial markings. Call is a gruff, accelerating series of “kow” notes.
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