Crowned Cormorant
Microcarbo coronatus
A small, plain-backed cormorant that is restricted to near-shore marine environments, where it is uncommon. Sometimes it occurs in coastal estuaries alongside the similar Long-tailed Cormorant, which has a shorter crest (year-round), a pale-speckled back, and a relatively longer tail. Nonbreeding and immature plumages are brownish with paler underparts. Frequently roosts on coastal rocks with other marine cormorants, which are larger and have blue or brownish eyes. Flies poorly on short, stubby wings; avoids the deeper marine waters frequented by Cape and Bank cormorants.
识别特征
The crowned cormorant is 50–55 cm in length. Adults are black with a small crest on the head and a red face patch. Young birds are dark brown above, paler brown below, and lack the crest. They can be distinguished from immature reed cormorants by their darker underparts and shorter tail.
分类信息
Genus: Microcarbo; Family: Phalacrocoracidae; Order: Suliformes.
- 学名
- Microcarbo coronatus
- 命名信息
- (Wahlberg, 1855)
- 目
- Suliformes
- 科
- Phalacrocoracidae
- 属
- Microcarbo
分布与栖息地
It is found from Cape Agulhas north to Swakopmund along the coast of southern Africa.<p>The population appears to be between 2500 and 2900 breeding pairs. It breeds in small groups, with fewer than 150 individuals per colony being typical. Ringing recoveries show that juveniles may disperse up to 277 km from their nests, and adults move between breeding sites over 500 km apart.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
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