Blue-eyed Cockatoo
Cacatua ophthalmica
A large, bulky white parrot with a tall yellow-and-white crest that it often raises when perched and bright blue skin around the eyes. In flight, underwing and undertail washed yellowish. Prefers lowland tropical forest up to 100 meters of elevation. Often common around villages at the forest edge. Unique within its range. Voice loud and obtrusive, including a screaming and gull-like “rehhhhh rehhhhh.”
识别特征
The blue-eyed cockatoo is a large, about 50-cm-long, mainly white cockatoo with an erectile yellow and white crest, a black beak, dark grey legs, and a light blue rim of featherless skin around each eye, that gives this species its name. The sexes are very similar in appearance. Some males have dark brown irises and some females have reddish-brown irises, but this small difference is not always reliable as a gender indicator. The blue-eyed cockatoo is easily mistaken for the yellow-crested and sulphur-crested cockatoos, but has a more rounded crest with more white to the frontal part, and a brighter blue eye-ring. The blue-eyed cockatoo reaches full maturity after 4 years and lives an average of 50 years.<p>Blue-eyed cockatoo has been known to make demanding, but great house pets. This bird has been called by some as the friendliest and most loving of all the cockatoo species. Household skills include mimicking owners, laying on the back of loved ones, and their love of play. Due to their interaction ability, these pets require quite a bit of attention. A lack of interaction could result in self-mutilation from the bird, that includes feather plucking.
分类信息
- 学名
- Cacatua ophthalmica
- 命名信息
- Sclater, PL, 1864
- 目
- Psittaciformes
- 科
- Cacatuidae
- 属
- Cacatua
分布与栖息地
The blue-eyed cockatoo is endemic to the lowland forests of New Britain east of New Guinea, and it is the only cockatoo in the Bismarck Archipelago. These low-land forests consist of primary (untouched) forests, selectively logged forests, and gardened forests, or ones tended by indigenous people. In the 1960s, researchers found it difficult to find the majestic bird due to their flight routes they took in these gardened forests. Packs of the bird would fly 3,280 feet in the air, resulting in a difficult time catching a sighting of them. They are not very particular of the types of trees they choose to nest, but are found more abundantly and actively in primary forests versus gardened forests. The nests are usually located in very large trees, at an average height of 41 m (135 ft). Psittacine habits also suggest that blue-eyed cockatoos may make altitude and seasonal migratory movements throughout the year. As of 2012, the blue-eyed cockatoo's population ranges from 10,000 mature individuals to 15,000 individuals in general. This population, however, is declining.
- 迁徙
- Resident species
保护状况
- 种群趋势
- declining
照片
分布
其他鸟类
Two-barred Warbler
Phylloscopus plumbeitarsus
A small songbird, greenish above, white below, with black-bordered white supercilium and thin white wingbars. Larger and more contrastingly marked than Yellow-browed Warbler, which has weaker wingbars and a generally stouter appearance. Not as elongate-looking as Arctic Warbler, with a shorter-billed profile and a more extensive white supercilium that reaches the base of the upper bill (Arctic's brow stops well short of the bill). Extremely similar to Greenish Warbler: Two-barred tends to be more brightly colored above than Greenish and has two wingbars instead of one. Song a series of quick trills and squeaks, lacking the two introductory notes of Greenish; call a flat series of three notes, similar to Greenish. Breeds in taiga forest, winters in a range of forest and forest edge habitats.
Gray Bushchat
Saxicola ferreus
Small songbird of forest edges, open scrub, and farmland, usually seen in pairs or small flocks. Male is silvery gray overall with black face and white supercilium, throat, belly, and wing patches. Female dull brown overall, with a rufous tail and faded version of the male's head pattern. Bold but not very active, usually seen perching for long periods on posts and overhead wires. Song is bright and melodious, but often has a somewhat faltering quality, trailing off towards the end. Most common call is a harsh rising “bzeeet!”.
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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