Cape cormorant

Last updated

Cape cormorant
Phalacrocorax capensis - Namib 2013.jpg
Walvis Bay, Namibia
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Class: Aves
Order: Suliformes
Family: Phalacrocoracidae
Genus: Phalacrocorax
Species:
P. capensis
Binomial name
Phalacrocorax capensis
(Sparrman, 1788) [2]
CapeCormorantMap.jpg

The Cape cormorant or Cape shag (Phalacrocorax capensis) is a bird endemic to the southwestern coasts of Africa.

Contents

It breeds from the coastal area of Namibia to southern Western Cape. In the nonbreeding season, it may be found as far north as the mouth of the Congo, also extending its home up the east coast of South Africa as far as Mozambique. In the 1970s, the breeding population was estimated as over 1 million in Namibia alone. However, the IUCN now classifies it as "Endangered" due to a very rapid decline in the population over the last three generations. [1]

The Cape cormorant is an almost entirely glossy black bird, though in breeding condition it has a purplish tinge and a few white plumes on the head, neck, and cloacal areas. Its gular skin is a deep orangey yellow; unusually for a cormorant, its lores are feathered. The bird's wing is about 240–280 mm in extent, and it weighs 800–1600 grams, with little sexual dimorphism.

Cape shags commonly forage in flocks, taking schooling fish, such as pilchards, anchovies, and sand eels from mid-water. Its prey are typically much smaller than those of the sympatric bank cormorant. Their major predators are black-backed jackals, which take the occasional adult while it is roosting, and nest-site predators such as great cormorants, eastern great white pelicans, and kelp gulls.

Like a number of other related cormorant species, the Cape cormorant is placed by some authorities (e.g. Johnsgaard) in the genus Leucocarbo .

Related Research Articles

<span class="mw-page-title-main">Pelagic cormorant</span> Species of bird

The pelagic cormorant, also known as Baird's cormorant or violet-green cormorant, is a small member of the cormorant family Phalacrocoracidae. Analogous to other smallish cormorants, it is also called the pelagic shag occasionally. This seabird lives along the coasts of the northern Pacific; during winter it can also be found in the open ocean. Pelagic cormorants have relatively short wings due to their need for economical movement underwater, and consequently have the highest flight costs of any bird.

<span class="mw-page-title-main">Little pied cormorant</span> Species of bird

The little pied cormorant, little shag or kawaupaka is a common Australasian waterbird, found around the coasts, islands, estuaries, and inland waters of Australia, New Guinea, New Zealand, Timor-Leste, and Indonesia, and around the islands of the south-western Pacific and the subantarctic. It is a small short-billed cormorant usually black above and white below with a yellow bill and small crest, although a mostly black white-throated form predominates in New Zealand. Three subspecies are recognised. Until recently most authorities referred to this species as Phalacrocorax melanoleucos.

<span class="mw-page-title-main">Great cormorant</span> Species of bird

The great cormorant, known as the black shag or kawau in New Zealand, formerly also known as the great black cormorant across the Northern Hemisphere, the black cormorant in Australia, and the large cormorant in India, is a widespread member of the cormorant family of seabirds. The genus name is Latinised Ancient Greek, from φαλακρός and κόραξ, and carbo is Latin for "charcoal".

<span class="mw-page-title-main">European shag</span> Species of bird

The European shag or common shag is a species of cormorant. It is the only member of the monotypic genus Gulosus. It breeds around the rocky coasts of western and southern Europe, southwest Asia and north Africa, mainly wintering in its breeding range except for the northernmost birds. In Britain this seabird is usually referred to as simply the shag. The scientific genus name derives from the Latin for glutton. The species name aristotelis commemorates the Greek philosopher Aristotle.

<span class="mw-page-title-main">Australian pied cormorant</span> Species of bird

The Australian pied cormorant, also known as the pied cormorant, pied shag, or great pied cormorant, is a medium-sized member of the cormorant family. It is found around the coasts of Australasia. In New Zealand, it is usually known either as the pied shag or by its Māori name of kāruhiruhi. Older sources may refer to it as the "yellow-faced cormorant".

<span class="mw-page-title-main">Bank cormorant</span> Species of bird

The bank cormorant, also known as Wahlberg's cormorant, is a medium-sized cormorant that is endemic to Namibia and the western seaboard of South Africa, living in and around coastal waters; it is rarely recorded more than 15 km offshore.

<span class="mw-page-title-main">Guanay cormorant</span> Species of bird

The guanay cormorant or guanay shag is a member of the cormorant family found on the Pacific coast of Peru and northern Chile. After breeding it spreads south to southern parts of Chile and north to Ecuador, and has also been recorded as far north as Panama and Colombia – probably a result of mass dispersal due to food shortage in El Niño years. Its major habitats include shallow seawater and rocky shores.

<span class="mw-page-title-main">Little black cormorant</span> Species of bird

The little black cormorant is a member of the cormorant family of seabirds. It is common in smaller rivers and lakes throughout most areas of Australia and northern New Zealand, where it is known as the little black shag. It is around sixty centimetres long, and is all black with blue-green eyes.

<span class="mw-page-title-main">Red-faced cormorant</span> Species of bird

The red-faced cormorant, red-faced shag or violet shag, is a bird species of the family Phalacrocoracidae.

<span class="mw-page-title-main">Socotra cormorant</span> Species of bird

The Socotra cormorant is a threatened species of cormorant that is endemic to the Persian Gulf and the south-east coast of the Arabian Peninsula. It is also sometimes known as the Socotran cormorant or, more rarely, as the Socotra shag. Individuals occasionally migrate as far west as the Red Sea coast. Despite its name, it was only confirmed in 2005 that it breeds on the Socotra islands in the Indian Ocean.

<span class="mw-page-title-main">Rock shag</span> Species of bird

The rock shag, also known as the Magellanic cormorant, is a marine cormorant found around the southernmost coasts of South America. Its breeding range is from around Valdivia, Chile, south to Cape Horn and Tierra del Fuego, and north to Punta Tombo in Argentina. In winter it is seen further north, with individuals reaching as far as Santiago, Chile on the west coast and Uruguay on the east. The birds also breed around the coasts of the Falkland Islands.

<span class="mw-page-title-main">White-breasted cormorant</span> Member of the cormorant family Phalacrocoracidae from Sub-Saharan Africa

The white-breasted cormorant is much like the widespread great cormorant and if not a regional variant of the same species, is at least very closely related. It is distinguished from other forms of the great cormorant by its white breast and by the fact that subpopulations are freshwater birds. Phalacrocorax lucidus is not to be confused with the smaller and very different endemic South Australian black-faced cormorant, which also is sometimes called the white-breasted cormorant.

<span class="mw-page-title-main">Black-faced cormorant</span> Species of bird

The black-faced cormorant, also known as the black-faced shag, is a medium-sized member of the cormorant family. Upperparts, including facial skin and bill, are black, with white underparts. It is endemic to coastal regions of southern Australia.

<span class="mw-page-title-main">Crowned cormorant</span> Species of bird endemic to Namibia and South Africa

The crowned cormorant or kuifkopduiker, 'Fringe-head diver', is a small cormorant that is endemic to the waters of the cold Benguela Current of southern Africa. It is an exclusively coastal species and is not found more than 10 km (6 mi) away from land. This species is related to the reed cormorant, and was formerly considered to the same species.

<span class="mw-page-title-main">Imperial shag</span> Species of bird

The imperial shag or imperial cormorant is a black and white cormorant native to southern South America, primarily in rocky coastal regions, but locally also at large inland lakes. Some taxonomic authorities, including the International Ornithologists' Union, place it in the genus Leucocarbo, others in the genus Phalacrocorax. It is also known as the blue-eyed shag, blue-eyed cormorant and by many other names, and is one of a larger group of cormorants called blue-eyed shags. The taxonomy is very complex, and several former subspecies are often considered separate species.

<span class="mw-page-title-main">Red-legged cormorant</span> Species of bird

The red-legged cormorant, also known as the red-legged shag, red-footed cormorant, red-footed shag, Gaimard's cormorant and grey cormorant, is a species of cormorant resident to the coastline of South America. It is the only member of the genus Poikilocarbo. It is non-colonial unlike most seabirds. The red-legged cormorant has not been observed wing-spreading, which is unusual among cormorant species.

<span class="mw-page-title-main">Chatham shag</span> Species of bird

The Chatham shag, also known as the Chatham Island shag, is a species of bird in the cormorant and shag family, Phalacrocoracidae. It is endemic to the Chatham Islands of New Zealand. For a long time the species was placed in the genus Phalacrocorax; today it is mostly placed with the other blue-eyed shags of New Zealand and Antarctica in the genus Leucocarbo. Its closest relative is the Otago shag of South Island.

<span class="mw-page-title-main">Bounty shag</span> Species of bird

The Bounty shag, also known as the Bounty Island shag, is a species of cormorant of the family Phalacrocoracidae. They are found only on the tiny and remote Subantarctic Bounty Islands, 670 km southeast of New Zealand. Its natural habitats are open seas and rocky shores. In 2005 618 individuals were counted and the population seems to have remained stable since.

<span class="mw-page-title-main">Suliformes</span> Order of birds

The order Suliformes is an order recognised by the International Ornithologist's Union. In regard to the recent evidence that the traditional Pelecaniformes is polyphyletic, it has been suggested that the group be divided to reflect the true evolutionary relationships, a 2017 study indicated that they are most closely related to Otidiformes (bustards) and Ciconiiformes (storks).

Ichaboe Island is a small rocky island off Namibia's Diamond Coast. It is recognised by BirdLife International as an Important Bird Area (IBAs) for its seabird breeding colonies.

References

  1. 1 2 BirdLife International (2018). "Phalacrocorax capensis". IUCN Red List of Threatened Species . 2018: e.T22696806A132594943. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22696806A132594943.en . Retrieved 11 November 2021.
  2. BirdLife International (2013). "Phalacrocorax capensis". IUCN Red List of Threatened Species . 2013. Retrieved 26 November 2013.

Commons-logo.svg Media related to Phalacrocorax capensis at Wikimedia Commons
Wikispecies-logo.svg Data related to Phalacrocorax capensis at Wikispecies