Horned screamer

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Horned screamer
Anhima cornuta -near Manu Wildlife Center, Manu National Park, Peru -three-8.jpg
Three in Manu National Park, Peru
Horned Screamer calls, recorded in Amacayacu National Park, Colombia
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Order: Anseriformes
Family: Anhimidae
Genus: Anhima
Brisson, 1760
Species:
A. cornuta
Binomial name
Anhima cornuta
(Linnaeus, 1766)
Horned Screamer Range.png
Distribution map
Synonyms

Palamedea cornutaLinnaeus, 1766

The horned screamer (Anhima cornuta) is a member of a small family of birds, the Anhimidae, which occurs in wetlands of tropical South America. There are three screamer species, the other two being the southern screamer and the northern screamer in the genus Chauna. They are related to the ducks, geese and swans, which are in the family Anatidae, but have bills looking more like those of game birds.

Contents

Taxonomy

Already known in the 17th century, [2] the horned screamer was described in 1766 by the Swedish naturalist Carl Linnaeus in the twelfth edition of his Systema Naturae . He introduced the binomial name Palamedea cornuta. [3] The horned screamer is now the only species placed in the genus Anhima that was introduced by the French zoologist Mathurin Jacques Brisson in 1760. [4] [5] The specific epithet cornuta is the Latin word for "horned". [6] The German naturalist Georg Marcgrave had used the Latin name Anhima in 1648 for the horned screamer in his Historia naturalis Brasiliae. [7] The name was from the word for the bird in the Tupi language of South America. [8]

Description

The horned screamer is a massive 84–95 cm (33–37.5 in) long, 3.5 kg (7.7 lb) bird, with a small chicken-like bill. The upperparts, head, and breast are black, with white speckles on the crown, throat and wing coverts. There is a long spiny structure projecting forward from the crown. This structure is unique among birds and is not derived from a feather but is a cornified structure that is loosely attached to the skull and grows continuously while often breaking at its tip. [9] This gives this species its name. It has very long and lanky legs and three large toes in each. The belly and under wing coverts are white. It has two sharp spurs on its wings and feet which are only partially webbed.

Call

The horned screamer's call, as the name suggests, is a very loud and repetitive echoing sound. [10] It is called "el clon-clon" in Ecuador because of this peculiar feature.[ citation needed ]

Distribution and habitat

The horned screamer is found in lowlands from Colombia, Venezuela, Brazil, Bolivia, Peru, Ecuador, French Guiana, Suriname, and Guyana. [11] It has been possibly extirpated from Trinidad. [1] Despite having declined locally, it remains widespread and is fairly common overall. Its range in Brazil appears to have expanded in recent years.

Behavior

Screamers, like most birds, tend to group together, but are for the most part semi-social. The existence of the screamer is rather sedentary. [12] It lives in well-vegetated marshes and feeds on water plants.

Breeding

Its nest is a large pile of floating vegetation anchored in shallow water. Three olive-brown eggs are laid, and the young, like those of most Anseriformes, can run as soon as they are hatched.

As a symbol

The horned screamer is the official bird of both the Department of Arauca and the Municipality of Arauca in Colombia, [13] as well as a symbol of the National Reserve of Churute in Ecuador. [14] The department and its capital are named after the bird, which is called arauco or aruco in Spanish.

In Brazil, the bird is known as the anhuma in the Portuguese language. It is the state bird of Goiás. The horned screamer also appears in the flags and coats of arms of the municipalities of Guarulhos and Tietê, both located in the State of São Paulo. [15]

Footnotes

  1. 1 2 BirdLife International (2016). "Anhima cornuta". IUCN Red List of Threatened Species . 2016: e.T22679723A92826187. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22679723A92826187.en . Retrieved 12 November 2021.
  2. Grew, Nehemiah (1681). Rarities belonging to the Royal Society, p.65.
  3. Linnaeus, Carl (1766). Systema naturae : per regna tria natura, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1, Part 1 (12th ed.). Holmiae (Stockholm): Laurentii Salvii. p. 232.
  4. Brisson, Mathurin Jacques (1760). Ornithologie, ou, Méthode Contenant la Division des Oiseaux en Ordres, Sections, Genres, Especes & leurs Variétés (in French and Latin). Paris: Jean-Baptiste Bauche. Vol. 1, p. 48, Vol. 5, p. 518.
  5. Gill, Frank; Donsker, David, eds. (2019). "Screamers, ducks, geese, swans". World Bird List Version 9.1. International Ornithologists' Union. Retrieved 9 April 2019.
  6. Jobling, J.A. (2019). del Hoyo, J.; Elliott, A.; Sargatal, J.; Christie, D.A.; de Juana, E. (eds.). "Key to Scientific Names in Ornithology". Handbook of the Birds of the World Alive. Lynx Edicions. Retrieved 9 April 2019.
  7. Marcgrave, Georg (1648). Historia naturalis Brasiliae (in Latin). Vol. Liber Quintus: Qui agit de Avibus. Lugdun and Batavorum (London and Leiden): Franciscum Hackium and Elzevirium. p. 215.
  8. Jobling, J.A. (2019). del Hoyo, J.; Elliott, A.; Sargatal, J.; Christie, D.A.; de Juana, E. (eds.). "Key to Scientific Names in Ornithology". Handbook of the Birds of the World Alive. Lynx Edicions. Retrieved 9 April 2019.
  9. Stettenheim, Peter R. (2000). "The Integumentary Morphology of Modern Birds—An Overview". American Zoologist. 40 (4): 461–477. doi: 10.1093/icb/40.4.461 .
  10. Lodge Amazon (2015-03-21), Horned Screamers Loud, archived from the original on 2021-12-22, retrieved 2018-11-19
  11. Clements, J. (2007)
  12. Piland, Natalia (2010-07-07). "Horned Screamer (Anhima cornuta)". Neotropical Birds. doi:10.2173/nb.horscr1.01. S2CID   135170956.
  13. "Arauca: Departamento de Arauca Colombia" [Arauca: Department of Arauca Colombia]. todacolombia.com (in Spanish). 2019-02-19. Archived from the original on 2022-09-26. Retrieved 2023-06-05.
  14. "Reserva Ecológica Manglares Churute – Ministerio del Ambiente, Agua y Transición Ecológica" [Manglares Churute Ecological Reserve – Ministry of the Environment, Water and Ecological Transition]. www.ambiente.gob.ec (in Spanish). Archived from the original on 2022-07-14. Retrieved 2023-06-05.
  15. Marques, Evandro (2022-07-04). "Anhuma, considerada a ave símbolo do estado de Goiás" [Anhuma, considered the symbolic bird of Goiás state]. Coisas da Roça (in Brazilian Portuguese). Archived from the original on 2023-06-05. Retrieved 2023-06-05.

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