Yellow-crested Cockatoo
Cacatua sulphurea
A medium-sized white cockatoo with a yellow crest; rare and endangered throughout its native range but has several strong naturalized populations across Asia. Raucous and social, usually seen in large flocks flying noisily over forested areas. Noticeably smaller than the similarly-colored Sulphur-crested Cockatoo; no natural range overlap, but the two coexist in parts of their introduced range, such as Singapore.
分类信息
In the 18th century, yellow-crested cockatoos were imported into Europe as pets and these birds were described by various naturalists. In 1738 English naturalist Eleazar Albin included a description and illustration of the "Cockatoo or White crested parrot" in his A Natural History of Birds based on a bird displayed at "The Tiger" tavern on Tower Hill in London. In 1760 the French zoologist Mathurin Jacques Brisson included "Le Kakatoes à hupe jaune" in his Onithologie based on a live bird that he had seen in Paris. Then in 1764, George Edwards included the "Lesser white cockatoo with a yellow crest" in his Gleanings of natural history from a pet bird kept at a home in Essex, and in 1779 French polymath Comte de Buffon included the bird in his Histoire Naturelle des Oiseaux.<p>When the German naturalist Johann Friedrich Gmelin revised and expanded Carl Linnaeus's Systema Naturae in 1788 he included the yellow-crested cockatoo based on the accounts of earlier naturalists. He placed it with the parrots in the genus Psittacus and coined the binomial name Psittacus sulphureus. The type locality is the island of Sulawesi, Indonesia. The yellow-crested cockatoo is now one of 11 species placed in the genus Cacatua that was introduced in 1817 by Louis Pierre Vieillot.<p>According to the International Ornithological Congress, 5 subspecies are recognized:<p>Previously, only 4 of these were recognized, but djampeana and occidentalis were recognized in 2022 based on a 2014 phylogenetic study. The subspecies paulandrewi, thought to be endemic to the Tukangbesi Islands and also recognized in the 2014 study, is not recognized by the IOC.<p>Until 2023, the citron-crested cockatoo (Cacatua citrinocristata) was considered by the IOC to be a subspecies of yellow-crested cockatoo.
- 学名
- Cacatua sulphurea
- 命名信息
- (Gmelin, JF, 1788)
- 目
- Psittaciformes
- 科
- Cacatuidae
- 属
- Cacatua
分布与栖息地
- 迁徙
- Resident species
保护状况
The yellow-crested cockatoo is critically endangered. Numbers have declined dramatically due to illegal trapping for the cage-bird trade. Between 1980 and 1992, over 100,000 of these birds were legally exported from Indonesia, yet a German proposal submitted to CITES to move it to Appendix I was not approved. It has since been moved to Appendix I. The current population is estimated at fewer than 2,500 individuals and is thought to be declining in number.<p>The subspecies C. s. abbotti is found only on the island of Masakambing. Its population on this tiny island (about 5 km2 or 1.9 mi2) had fallen to 10 as of June and July 2008. The decline results from trapping and logging, especially of mangroves (Avicennia apiculata) and kapok trees.<p>Several national parks their habitat, including Rawa Aopa Watumohai National Park on Sulawesi, Komodo National Park on Komodo Island, the national parks of Manupeu Tanah Daru and Laiwangi Wanggameti on Sumba, and the Nino Konis Santana National Park in East Timor (Timor-Leste).
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Great Gray Owl
Strix nebulosa
A large enigmatic owl of bogs, meadows, and coniferous forest. This rare and sought-after species is most often seen hunting around dawn and dusk, when it perches silently at the edges of clearings. Feeds mainly on voles. When vole populations crash, Great Grays can be found in large numbers south of their usual northern haunts, especially in winter. Yellow eyes and white bow-tie pattern on neck separate Great Gray from Barred. Its deep hoots are rarely heard.
Boat-billed Tody-Tyrant
Hemitriccus josephinae
Tiny, inconspicuous flycatcher with an oversized bill. Plumage generally olive above and yellow below, with faint breast mottling; most readily identified by its large, long bill with entirely pale mandible. A rare resident of tall rainforest, where it seems to prefer areas with many dense vine tangles. Usually encountered alone, sitting deep inside a vine tangle in the mid-story and making short sallies to foliage for insects. Almost always first detected by voice: a series of two or three short hollow notes, somewhat musical and descending in pitch. Unlikely to be confused if seen well, on account of its large bill. Voice is somewhat similar to that of Pelzeln’s Tody-Tyrant but is deeper and seldom exceeds three notes; the two species occupy entirely different habitats.
South Moluccan Cicadabird
Edolisoma amboinense
Small cuckooshrike with a restricted range, found only on the South Moluccan islands. Males are grayish. More distinctive female is grayish on the back, and buff below, with fine barring. Found in wooded habitats. Vocalizations apparently unknown. Female easily distinguished from much grayer Pale Cuckooshrike, which also has unbarred underparts.
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。