Andaman Masked-Owl
Tyto deroepstorffi
A medium-sized owl with a prominent facial disc. Very similar to the Barn Owl, but the Andaman Masked-Owl is smaller and much browner overall, with darker upperparts and heavily spotted pale brown underparts. Found around forest edges, farms, and habitations. The call is a short but loud dry screech.
识别特征
The Andaman masked owl grows between 30 and 36 cm (12 and 14 in) from head to tail, with the tail adding about 11 cm (4.3 in). The wingspan is around 52 cm (nearly 2 feet), with each wing measuring about 26 cm (10.2 in) when outstretched. It is almost uniformly dark reddish-brown above, with some speckling of buffish-orange, and a more yellowish torso than the common barn owl. The facial disc is pale, reddish-buff with a distinctive orange-brown margin. The eyes are blackish and the beak is creamy-white. The breast is golden-brown with blackish spots, paling towards the belly, which is whitish. The legs are fully feathered to near the feet. The toes are greyish-pink and the claws purplish-grey. The voice has been described as a rather high-pitched, short, rasping, descending shriek which terminates abruptly and is repeated several times.
分类信息
The species was named by Allan Octavian Hume after the collector Frederik Adolph de Roepstorff who shot it at Aberdeen, Andamans. Hume placed it in the genus Strix. Some authors consider this bird to be a subspecies of the barn owl/western barn owl (Tyto alba),or the eastern barn owl (Tyto javanica), but König, in his Owls of the World, recognizes it as a distinct species; one distinguishing feature is that it lacks the greyish veil, speckled with black and white, that all other races of Tyto alba / Tyto javanica possess.
- 学名
- Tyto deroepstorffi
- 命名信息
- (Hume, 1875)
- 目
- Strigiformes
- 科
- Tytonidae
- 属
- Tyto
分布与栖息地
The Andaman masked owl is known only from the southern Andaman Islands. It occurs on the coastal plain, in fields and gardens with trees, and in human settlements. It is not thought to be migratory.
行为
Little is known of the habits of this owl but they are likely to be similar to those of other related species. It is nocturnal, roosting during the day and emerging at dusk. It feeds on small rodents, and the bones of mice and rats have been found in regurgitated pellets beneath roosting places. It probably nests in cavities but details of its breeding habits are not known.
照片
鸟叫声
其他鸟类
Wilson's Plover
Anarhynchus wilsonia
Large black bill is diagnostic. Slightly larger than similar plovers, with large blocky head. Breeding plumage shows thick black band across breast, white forehead, and bolder face pattern; nonbreeding birds show less contrast. Legs dull pinkish. Found on sandy beaches, usually singly but sometimes in small loose flocks. Medium-brown upperparts similar but slightly paler than Semipalmated Plover, notably darker than Snowy or Piping.
Sunda Collared-Dove
Streptopelia bitorquata
Medium-sized pinkish-brown dove with bright red eyes. “Collar” is black with a white upper margin. Favors mangroves and other open forests and forest edge, occasionally venturing into areas of human habitation; generally uncommon throughout much of its range. Gives a deep throaty purr.
Spot-flanked Barbet
Tricholaema lacrymosa
Chunky, medium-sized black-and-white barbet. There is a black triangle on the throat and large spots on the sides of the belly. Found in a variety of habitats including moist woodland and gallery forest. Generally in lusher habitats than other closely related barbets. The two main calls are a slow series of “kwaa” notes and a fast series of nasal “kye” notes. Easily separated from similar barbets by the spotted underparts and pale eye.
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