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
Blue Mockingbird
Melanotis caerulescens
Not closely related to Northern Mockingbird. Skulking and heard far more often than seen, this fairly large and ample-tailed songbird might be better named "denim catbird" for its overall dull blue plumage, mewing calls, and retiring behavior. Favors thickets, dense scrubby woodlands, and forest understory in foothills and highlands; locally to western lowlands in winter. Tosses leaves on the ground and also feeds at all levels in dense fruiting bushes and trees. Most often seen in short flights across roads or trails from cover to cover. Voice notably varied.
Black-capped Petrel
Pterodroma hasitata
A long-winged, black-and-white bird that is most often found far out at sea, coming to land only to breed on remote cliffs from November into May. Adults visit the nest sites only at night, when it is possible to hear this species vocalizing. The rather similar Bermuda Petrel lacks this species’ white collar and white rump. Black-capped Petrels also have a darker headed or “cowled” appearance than Bermuda Petrels. Calls at nesting areas include a drawn out “awwwww” that often grows louder towards the end and is usually given in series, sometimes with a squeaky hiccuplike terminal note that has an oddly donkey-like quality. Also gives a puppy-like yelp.
Indian Golden Oriole
Oriolus kundoo
Males are bright yellow overall save for the black wings and inner tail feathers. Note the yellow patch on the wings, the yellow outer tail feathers, the black stripe through the eye that gives it a masked appearance, and the fleshy pink bill. The female is dull greenish-yellow overall with dirty brown/green wings and a completely yellowish tail. Both males and females have red iris. Most often found feeding in tree canopies either singly or in pairs. They generally give a harsh “krrrrrrrrrrrr” call while feeding. In flight, note its characteristic dipping flight style.
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