Fulmar Prion
Pachyptila crassirostris
Small to medium-sized prion with dark “M'' stretched across back from wingtip to wingtip, noticeable in flight. Fulmar Prion has poorly defined facial markings and a broad, dark tip to the upper tail. Breeds on the Chatham Islands, New Zealand Subantarctic Islands, and Heard Island. Relatively sedentary and usually only seen around breeding colonies year-round. Very similar to the more abundant Fairy Prion and generally only distinguishable when in the hand. Fulmar Prion has a heavier bill with a larger hook and slightly darker tip to the underside of the tail.
分类信息
The fulmar prion is a member of the genus Pachyptila – and along with the blue petrel – makes up the prions. They in turn are members of the family Procellariidae and the order Procellariiformes. The prions are small and typically eat zooplankton; however, as a member of the Procellariiformes, they share certain identifying features. First, they have nasal passages that attach to the upper bill called naricorns, although the nostrils on the prion are on top of the upper bill. The bills of Procellariiformes are also unique in that they are split into between 7 and 9 horny plates. They produce a stomach oil made up of wax esters and triglycerides that is stored in the proventriculus. This is used against predators as well as an energy-rich food source for chicks and for the adults during their long flights. Finally, they also have a salt gland that is situated above the nasal passage and helps desalinate their bodies, due to the high amount of seawater that they imbibe. They excrete concentrated brine from their nostrils.<p>The fulmar prion has two subspecies:
- 学名
- Pachyptila crassirostris
- 命名信息
- (Mathews, 1912)
- 目
- Procellariiformes
- 科
- Procellariidae
- 属
- Pachyptila
分布与栖息地
The fulmar prion is pelagic and stays over the southern oceans. When breeding, they will come ashore and nest on Heard Island, Auckland Islands, Chatham Islands, Bounty Islands, and Snares Island.
- 迁徙
- Complete migrants
行为
Fulmar prions are annual breeders; they lay a single egg in their nest on islands with colonies. Both sexes will incubate the egg, which takes about 45 days, and raise the chick until it fledges at around 46 days.<p>Like all prions, fulmar prions eat predominantly zooplankton, which they strain through their upper bill.
保护状况
Fulmar prions have a very large range. Their population – while lower than most other prions – is still substantial, at between 150,000 and 300,000 adult birds. Because of these numbers, the IUCN rates them as Least Concern.
- 种群趋势
- stable
照片
分布
其他鸟类
Scaly-breasted Wren
Microcerculus marginatus
Dark, short-tailed wren, quite shy and difficult to see. Overall brown with paler grayish throat and rather long, straight bill. Some populations have more scaling on breast than others. Found on the ground inside forest, where it makes an interesting song. Listen for a series of whistled notes, starting off high-pitched with a few in rapid succession, then each note dropping in pitch and spaced further and further apart. The whole series can last for minutes. Far more often heard than seen.
Annobon White-eye
Zosterops griseovirescens
Greenish overall with a darker back and head, a yellower throat and breast, and a reddish tinge to the flanks. The only species in its range with bright white spectacles around the eyes. Endemic to the island of Annobón, where it is one of the most common (and one of the only) small forest birds. Can be found in virtually all wooded habitats on the island. Song is a warble of jumbled notes, and calls include short trills and “sip” notes.
Magpie Goose
Anseranas semipalmata
Large black-and-white waterbird with bulbous lump on the top of its head and striking orange legs and feet. Often seen in very large, noisy flocks. Typically found in and around wetlands, pastures, and orchards across northern Australia. Also perches in trees and on branches. Soft honking calls given frequently, including in flight.
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。