Peruvian pelican

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Peruvian pelican
Pelicano en Pucusana.JPG
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Pelecaniformes
Family: Pelecanidae
Genus: Pelecanus
Species:
P. thagus
Binomial name
Pelecanus thagus
Molina, 1782
Pelecanus thagus map.svg
Synonyms
  • Pelecanus occidentalis thagusMolina, 1782
  • Pelecanus barbieriOustalet, 1878

The Peruvian pelican (Pelecanus thagus) is a member of the pelican family. It lives on the west coast of South America, breeding in loose colonies from about 33.5 degrees south in central Chile to Piura in northern Peru, and occurring as a visitor in southern Chile and Ecuador. [2] It used to be considered a subspecies of the brown pelican.

Contents

Description

These birds are dark in colour with a white stripe from the top of the bill up to the crown and down the sides of the neck. They have long tufted feathers on the top of their heads. It was previously considered a subspecies of the brown pelican (Pelecanus occidentalis). The Peruvian pelican is considerably larger, ranging from about 5 to 7 kg (11–15 lb) in weight, 137 to 152 cm (4.5–5.0 ft) in length and with a wingspan of about 228 cm (7.5 ft). [2] [3] Compared to the brown pelican, it also has proportionally longer crest feathers, as well as differences in the colours of the gular pouch, beak, scapulars and greater wing coverts. [2]

Behaviour

Breeding

The main breeding season occurs from September to March. Clutch size is usually two or three eggs. Eggs are incubated for approximately 4 to 5 weeks, with the rearing period lasting about 3 months.

Breeding occurs in large coastal colonies. [4]

Feeding

Peruvian pelicans feed on several species of fish. Unlike the brown pelican, they never dive from a great height to catch its food, instead diving from a shallow height or feeding while swimming on the surface. [5] [6] On occasion they may take other food items, such as nestling of imperial shags, young Peruvian diving petrels, gray gulls and cannibalize unrelated chicks of their own species. [7] [8] They also feed on pelagic species such as anchovies. [6] In fact, those in the northern Humboldt Current System feed almost exclusively on one species, the Peruvian anchoveta. [9]

The birds feed around cold-water upwellings, being found along the Humboldt Current. [6]

Conservation

Its status was first evaluated for the IUCN Red List in 2008, being listed as Near threatened. [10] Its status was reassessed in 2018, and it was again listed as Near threatened, but with increasing population. [11]

One factor affecting their status may be competition with fishing industries for anchovies, a primary food source for the species. [4] [9]

Related Research Articles

<span class="mw-page-title-main">Pelican</span> Genus of large water birds with a throat pouch

Pelicans are a genus of large water birds that make up the family Pelecanidae. They are characterized by a long beak and a large throat pouch used for catching prey and draining water from the scooped-up contents before swallowing. They have predominantly pale plumage, except for the brown and Peruvian pelicans. The bills, pouches, and bare facial skin of all pelicans become brightly coloured before the breeding season.

<span class="mw-page-title-main">Seabird</span> Birds that have adapted to life within the marine environment

Seabirds are birds that are adapted to life within the marine environment. While seabirds vary greatly in lifestyle, behaviour and physiology, they often exhibit striking convergent evolution, as the same environmental problems and feeding niches have resulted in similar adaptations. The first seabirds evolved in the Cretaceous period, and modern seabird families emerged in the Paleogene.

<span class="mw-page-title-main">American white pelican</span> Species of bird

The American white pelican is a large aquatic soaring bird from the order Pelecaniformes. It breeds in interior North America, moving south and to the coasts, as far as Costa Rica, in winter.

<span class="mw-page-title-main">Brown pelican</span> Species of bird

The brown pelican is a bird of the pelican family, Pelecanidae, one of three species found in the Americas and one of two that feed by diving into water. It is found on the Atlantic Coast from New Jersey to the mouth of the Amazon River, and along the Pacific Coast from British Columbia to Peru, including the Galapagos Islands. The nominate subspecies in its breeding plumage has a white head with a yellowish wash on the crown. The nape and neck are dark maroon–brown. The upper sides of the neck have white lines along the base of the gular pouch, and the lower fore neck has a pale yellowish patch. The male and female are similar, but the female is slightly smaller. The nonbreeding adult has a white head and neck. The pink skin around the eyes becomes dull and gray in the nonbreeding season. It lacks any red hue, and the pouch is strongly olivaceous ochre-tinged and the legs are olivaceous gray to blackish-gray.

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

The Australian pelican is a large waterbird in the family Pelecanidae, widespread on the inland and coastal waters of Australia and New Guinea, also in Fiji, parts of Indonesia and as a vagrant in New Zealand. It is a predominantly white bird with black wings and a pink bill. It has been recorded as having the longest bill of any living bird. It mainly eats fish, but will also consume birds and scavenge for scraps if the opportunity arises.

<span class="mw-page-title-main">Dalmatian pelican</span> Species of bird

The Dalmatian pelican is the largest member of the pelican family, and perhaps the world's largest freshwater bird, although rivaled in weight and length by the largest swans. They are elegant soaring birds, with wingspans rivaling those of the great albatrosses, and their flocks fly in graceful synchrony. With a range spanning across much of Central Eurasia, from the Mediterranean in the West to the Taiwan Strait in the East, and from the Persian Gulf in the South to Siberia in the North, it is a short-to-medium-distance migrant between breeding and overwintering areas. No subspecies are known to exist over its wide range, but based on size differences, a Pleistocene paleosubspecies, P. c. palaeocrispus, has been described from fossils recovered at Binagady, Azerbaijan.

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

The great white pelican also known as the eastern white pelican, rosy pelican or simply white pelican is a bird in the pelican family. It breeds from southeastern Europe through Asia and Africa, in swamps and shallow lakes.

<span class="mw-page-title-main">Humboldt penguin</span> Species of bird

The Humboldt penguin is a medium-sized penguin. It resides in South America, its range mainly contains most of coastal Peru. Its nearest relatives are the African penguin, the Magellanic penguin and the Galápagos penguin. The Humboldt penguin and the cold water current it swims in both are named after the explorer Alexander von Humboldt. The species is listed as vulnerable by the IUCN with no population recovery plan in place. The current population is composed of 32,000 mature individuals and is going down. It is a migrant species.

<span class="mw-page-title-main">Inca tern</span> Species of bird

The Inca tern is a Near Threatened species of bird in subfamily Sterninae of the family Laridae, the gulls, terns, and skimmers. It is found in Chile, Ecuador, and Peru and has wandered to Central America and Hawaii.

<span class="mw-page-title-main">Magellanic diving petrel</span> Species of bird

The Magellanic diving-petrel is a species of diving petrel, one of five very similar, small, auk-like petrels found exclusively in the southern oceans. It is one of the smaller species of diving-petrels, though size differences are seemingly indistinguishable between species unless seen up close. It is probably the least known of all five species.

<span class="mw-page-title-main">Peruvian diving petrel</span> Species of bird

The Peruvian diving petrel is a small seabird that feeds in offshore waters in the Humboldt Current off Peru and Chile.

<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">Buller's albatross</span> Species of bird

Buller's albatross or Buller's mollymawk, is a small mollymawk in the albatross family.

<span class="mw-page-title-main">Peruvian booby</span> Species of bird

The Peruvian booby is an endemic bird of the Peruvian current, and an important predator of the marine community to which it belongs. Its distribution is much less widespread than other closely related booby species. It is the most abundant seabird species that inhabits the Peruvian coast and the second most important guano-producing seabird. During the mid-twentieth century, the Peruvian booby population reached 3 million birds.

<span class="mw-page-title-main">Belcher's gull</span> Species of bird

Belcher's gull, also known as the band-tailed gull, is a bird in the family Laridae found along the Pacific coast of South America. It formerly included the very similar Olrog's gull as a subspecies, but that bird occurs on the Atlantic coast of South America and is now accepted as Larus atlanticus. Belcher's gull is a medium-sized gull with a blackish mantle, white head and underparts, a black band on the otherwise white tail, and a yellow bill with a red and black tip. Non-breeding adults have a brownish-black head and a white eye-ring. The name of this bird commemorates the British explorer Sir Edward Belcher who performed survey work on the Pacific coast of South America.

<span class="mw-page-title-main">Elliot's storm petrel</span> Species of bird

Elliot's storm petrel is a species of seabird in the storm petrel family Oceanitidae. The species is also known as the white-vented storm petrel. There are two subspecies, O. g. gracilis, which is found in the Humboldt Current off Peru and Chile, and O. g. galapagoensis, which is found in the waters around the Galápagos Islands. It is a sooty-black storm petrel with a white rump and a white band crossing the lower belly and extending up the midline of the belly. It has long legs which extend beyond the body in flight.

<span class="mw-page-title-main">Markham's storm petrel</span> Species of seabird in Pacific South America

Markham's storm petrel is a seabird native to the Pacific Ocean around Peru, Chile, and Ecuador. The species is named after British explorer Albert Hastings Markham, who collected the specimen on which the scientific description was based. It is a large and slender storm petrel, with a wingspan between 49 and 54 cm. Its plumage is black to sooty brown with a grayish bar that runs diagonally across the upper side of the wings. A member of the family Hydrobatidae, the northern storm petrels, the species is similar to the black storm-petrel, from which it can be difficult to distinguish.

<span class="mw-page-title-main">Peruvian tern</span> Species of bird

The Peruvian tern is a species of tern in the family Laridae. Found in northern Chile, Ecuador, and Peru, its natural habitats are hot deserts, sandy shores, and coastal saline lagoons. It is threatened by habitat loss.

<span class="mw-page-title-main">Masatierra petrel</span> Species of bird

Masatierra petrel or De Filippi's petrel, is a species of seabird in the family Procellariidae. It is endemic to Chile where it nests in the Juan Fernández Islands and Desventuradas Islands. Its natural habitats are open seas and rocky shores.

<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.

References

  1. BirdLife International (2018). "Pelecanus thagus". IUCN Red List of Threatened Species . 2018: e.T22697619A132596827. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22697619A132596827.en . Retrieved 11 November 2021.
  2. 1 2 3 "Peruvian pelican". Handbook of the Birds of the World . Retrieved 21 May 2017.
  3. Schulenberg, Thomas S.; Stotz, Douglas F.; Lane, Daniel F.; O'Neill, John P.; III, Theodore A. Parker (2010-05-04). Birds of Peru: Revised and Updated Edition. Princeton University Press. ISBN   978-1-4008-3449-5.
  4. 1 2 "Peruvian Pelican (Pelecanus thagus) - BirdLife species factsheet". datazone.birdlife.org. Retrieved 2023-06-14.
  5. Jaramillo, A. (2009). "Humboldt Current seabirding in Chile". Neotropical Birding. 4: 27–39.
  6. 1 2 3 Jeyasingham, Will S.; Taylor, Scott A.; Zavalaga, Carlos B.; Simeone, Alejandro; Friesen, Vicki L. (2013). "Specialization to cold-water upwellings may facilitate gene flow in seabirds: new evidence from the Peruvian pelican Pelecanus thagus (Pelecaniformes: Pelecanidae)". Journal of Avian Biology. 44 (3): 297–304. doi:10.1111/j.1600-048X.2012.00004.x. S2CID   4288602.
  7. Cursach, J.A.; J.R. Rau; J. Vilugrón (2016). "Presence of the Peruvian Pelican Pelicanus thagus in seabird colonies of Chilean Patagonia". Marine Ornithology. 44: 27–30.
  8. Daigre, M.; P. Arce; A. Simeone (2012). "Fledgling Peruvian Pelicans (Pelecanus thagus) attack and consume younger unrelated conspecifics". Wilson Journal of Ornithology. 124 (3): 603–607. doi:10.1676/12-011.1. S2CID   84928683.
  9. 1 2 Passuni, Giannina; Barbraud, Christophe; Chaigneau, Alexis; Demarcq, Hervé; Ledesma, Jesus; Bertrand, Arnaud; Castillo, Ramiro; Perea, Angel; Mori, Julio; Viblanc, Vincent A.; Torres-Maita, Jose; Bertrand, Sophie (2016). "Seasonality in marine ecosystems: Peruvian seabirds, anchovy, and oceanographic conditions". Ecology. 97 (1): 182–193. doi:10.1890/14-1134.1. ISSN   0012-9658. JSTOR   24703004. PMID   27008787.
  10. BirdLife International (BLI) (2008) Peruvian Pelican Species Factsheet, 2008 IUCN Redlist status changes.
  11. BirdLife International. (2018). "Pelecanus thagus". IUCN Red List of Threatened Species . 2018: e.T22697619A132596827. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22697619A132596827.en . Retrieved 14 June 2023.