Little Corella
Cacatua sanguinea
Small, vocal white cockatoo with an erectile crest. Primarily white with a small pink patch in front of the eye. Very conspicuous, and often forms large, noisy flocks (up to several thousand birds) around water sources. Roosts in trees and nests in hollows, but primarily feeds on the ground. Well known for its comical antics; they often appear to play with one another. Typically loud, with a slurred multi-note falsetto call.
识别特征
The little corella is a small white cockatoo growing to 35–41 cm (14–16 in) in length and weighs 370–630 g (13–22 oz), with a mean weight of 525 g (1.157 lb). It is similar in appearance to both the long-billed corella and the western corella, but the little corella is smaller, and unlike either of those species, it has upper and lower mandibles of similar length. It is easily distinguished from the long-billed corella by the lack of an orange throat bar. C. s. normantoni and C. s. transfreta are a little smaller than the nominate form. C. s. normantoni is lightly brownish on the underside of flight and tail feathers. C. s. gymnopis has darker blue eye-rings, more strongly marked pink lores and a yellow wash to the lower-ear coverts. Females are slightly smaller than males in weight, wing length, culmen size, tarsus length, tail length and eye ring diameter.
分类信息
The first recorded description of the species was by English ornithologist John Gould in 1843. There are four subspecies as follows:<p>
- 学名
- Cacatua sanguinea
- 命名信息
- Gould, 1843
- 目
- Psittaciformes
- 科
- Cacatuidae
- 属
- Cacatua
分布与栖息地
The nominate form, C. s. sanguinea is found in Northern Australia. C. s. normantoni is found on the Western Cape York Peninsula. C. s. transfreta is found in New Guinea. C. s. gymnopis is found in Central, Eastern, and South-eastern Australia. Habitat ranges from the arid deserts of central Australia to the eastern coastal plains, but they are not found in thick forests. Little corellas can also be found in urban areas, including Melbourne, Canberra, Sydney and Brisbane, where they feed on lawns and playing fields. They are numerous in farmlands throughout New South Wales and Queensland, and have become so common in some areas that they are considered to be crop pests, and can be destructive to the trees in which they perch, by chewing the bark off smaller twigs.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: rising.
- 种群趋势
- rising
照片
分布
鸟叫声
其他鸟类
Tanimbar Flycatcher
Ficedula riedeli
An unmistakable, little-known, strikingly patterned small flycatcher confined to the Tanimbar Islands. Male is jet black above with a striking white eyebrow, wing patch, and sides to uppertail. Below, shows a tangerine chest and a white belly. Female is undescribed. Found in understory of forest in both lowland areas and in the foothills. Song is a complex high-pitched warble lasting a few seconds, and rising and falling regularly. Calls include a very high “sweee” and a soft, grating “grrr-it.”
Black-winged Cuckooshrike
Lalage melaschistos
An overall sooty-colored cuckooshrike with broad white tips to the tail feathers. Male is dark sooty-gray with a slaty sheen, slightly paler on rump. Underparts paler toward tail; wings black. Female is very similar to male, but paler in general, often weakly barred with dark and pale gray on underparts. Male has a black mask, while female has dark lores and a faint eyering. Juvenile is blackish-brown above and brownish-gray below, heavily scaled whitish all over, with broad white tips on wing feathers. Immature like female, but more strongly and extensively barred below. Song is a loud series of whistles “pe-pe-pe-peew-peew-pew”; sometimes the starting notes are skipped. Found in all types of woodlands, including broad-leaved forests, sometimes even near cultivation during non-breeding season.
Masked Antpitta
Hylopezus auricularis
Medium-sized antpitta of floodplain forest, particularly with palmetto understory, along the confluence of the Ríos Madre de Dios and Bení in the Riberalta area. The only antpitta in range with dark chevrons on underparts or a blue-gray cap. Forages on or near the ground, but generally perches 1-2 m up in the understory or midstory to sing at dawn. Visually distinctive in range, but song deceptively similar to, and perhaps indistinguishable from, local songs of Amazonian Antshrike. Call a more distinctive three to four-part descending whistle.
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