Sulawesi Masked-Owl
Tyto rosenbergii
A very large barn-owl with a gray facial disk, gray crown, and rufous upperparts and wings with scattered dark markings. Prefers open country, like agricultural land, plantations, and forest edge, from lowlands to mountains. Limited to Sulawesi. Distinguished from smaller Minahassa Masked-Owl by gray face, gray forecrown, more extensive dark markings across wings and upperparts, and preference for open country. Distinguished from Australasian Grass-Owl by feathered legs that do not project beyond the tail in flight, and by less contrasting wing pattern. Call is a long screeching note.
识别特征
The Sulawesi masked owl grows to a length of about 43 to 46 cm (17 to 18 in). The upperparts of the male are charcoal grey with scattered white spots and streaks. The underparts are buff with dark spots and streaks and the facial mask is white or whitish-brown. The call is an eerie, long drawn-out screech and is usually emitted in flight.
分类信息
The Sulawesi masked owl was first described by the German ornithologist Hermann Schlegel in 1866 as Strix rosenbergii, but was later included in the genus Tyto. The specific name "rosenbergii" refers to the German surveyor and naturalist Hermann von Rosenberg who collected bird specimens in the East Indies and sent them to the National Museum of Natural History in Leiden to be classified. There are two subspecies, T. r. rosenbergii (Schlegel, 1866), found in Sulawesi and Sangihe, and T. r. pelengensis Neumann, 1939, found in Peleng in the Banggai Island group. Other common names for this bird include Rosenberg's owl, Rosenberg's barn-owl, Sulawesi owl, Sulawesi barn-owl, Celebes barn-owl, Celebes masked-owl and Celebes owl.
- 学名
- Tyto rosenbergii
- 命名信息
- (Schlegel, 1866)
- 目
- Strigiformes
- 科
- Tytonidae
- 属
- Tyto
分布与栖息地
- 迁徙
- Resident species
行为
Little is known of the ecology of the Sulawesi masked owl. It hunts at night in secondary forest, agricultural land, grassland and open country. Examination of pellets regurgitated by this owl in a cave showed that the diet includes rats and shrews. This owl is commonly encountered in cultivated areas and scrubland on early morning visits to the Gunung Ambang Nature Reserve in the north of Sulawesi.
保护状况
- 种群趋势
- stable
照片
分布
其他鸟类
Gilded Flicker
Colaptes chrysoides
Large woodpecker, very similar to Northern Flicker. Overall pale sandy brown with gray face and brown crown. Spotted below with black oval on chest. Underwing and shafts of flight feathers bright yellow. Males have red mustache stripe; sexes otherwise alike. Combination of face pattern and yellow in wings helps distinguish from both "Red-shafted" and "Yellow-shafted" Northern Flickers. Shows a strong affinity for saguaro cactus but also found in nearby woodland. Gives a piercing "kleer" call similar to Northern Flicker.
Gray-headed Tanager
Eucometis penicillata
Small, uncommon tanager of humid tropical lowland forest, sometimes found at army ant swarms. Typically inhabits low to mid-levels of shady understory, as singles or pairs. Sexes look alike, with bushy gray head cleanly cut off from the rich yellow underparts and olive-green upperparts. Song is a rich squeaky warble, at times prolonged.
Olive Woodpecker
Dendropicos griseocephalus
Unusual woodpecker that lacks barring, spotting, and streaking. Males have a red cap, and both sexes show a red rump that is conspicuous in flight. Varies geographically; some populations show a red patch at the center of the belly and others a completely olive belly. Found in forest and dense woodland. Restricted to middle and high elevations across much of the range, though found down to sea level in South Africa. Call is a series of loud whinnies.
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