Red-legged seriema

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Red-legged seriema
Near Goiânia in central Brazil

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Cariamiformes
Family: Cariamidae
Genus: Cariama
Brisson, 1760
Species:
C. cristata
Binomial name
Cariama cristata
(Linnaeus, 1766)
Synonyms

(Genus)

(Species)

  • Microdactylus marcgravii É.Geoffroy Saint-Hilaire, 1809
  • Palamedea cristata Linnaeus, 1766

The red-legged seriema

paraphyletic circumscription but recently placed in a distinct order: Cariamiformes
(along with three extinct families).

The red-legged seriema is widely distributed in

La Pampa).[2]

Like the

predators and sometimes human intruders.[3]

Taxonomy

The red-legged seriema was

specific epithet cristata is Latin for "crested", "plumed" or "tufted".[7] The German naturalist Georg Marcgrave used the Latin word Cariama for the red-legged seriema in his Historia naturalis Brasiliae, which was published in 1648.[8]

The name is derived from the Portuguese word seriema, which comes from a Tupi word corresponding to çariama, derived from the words çaria (crest) and am (raised).[9][7]

Description

Close-up of Cariama cristata

The red-legged seriema is around 75 to 90 centimetres (30 to 35 in) long and weighs about 1.5 to 2.2 kilograms (3.3 to 4.9 lb),[2] with long legs, necks, and tails. The males are slightly larger than females. It has a greyish-brown plumage, finely barred and vermiculated with dark brown and black; pale brown on the head, neck, and breast; white on belly. The long, broad outer tail has a subterminal black band and a white tip. It has a reddish beak and very long, salmon-coloured legs. The eyes are yellow.[10][2] Soft feathers emerge from the base of the bill to form a distinctive fan-shaped crest.[11]

Many other characteristics are shared with the

Cariamidae
article.

Distribution and habitat

The red-legged seriema inhabits most of central and eastern Brazil, Paraguay, eastern and southeastern Bolivia, Uruguay, and northeastern Argentina. It is found at elevations up to 6,600 feet (2,000 m).[12]

The red-legged seriema prefers grassland habitat to any other. Though it likes to inhabit lush meadows near rivers, it will not readily move into

Chaco.[12]

Behavior and ecology

Seriemas are wary, territorial, and diurnal birds.[14][11] Generally, the red-legged seriema is sedentary, although there are reports of temperature-related migrations.[15] It is typically seen singly or in pairs, but occasionally in groups of up to four individuals, apparently families. It usually walks on the ground and can easily run faster than a human in its habitat. It will flee a car on foot at speeds up to 25 km/h (15 mph) before flying.[16]

Territorial defense may involve agonistic confrontation between individuals, initially characterized by full vocalization duets followed by short runs and flights towards intruders, alternated with claws and beak attacks.[17] In one conflict between two birds, they jumped at each other feet-first, keeping their balance by flapping.[16][18]

This species typically nests on low trees or bushes,[11] so that adults are able to reach the nest from the ground by short hops or flutters rather than by flying.[19]

Red-legged seriemas demonstrate an unusual way of hunting vertebrate prey; they pick the prey up with their beak and repeatedly throw it at the ground until it is stunned or dead.[20]

Vocalization

Full vocalization by the seriema is mainly done at dawn and to a lesser extent, during at dusk. It can also occur irregularly at other times of day.[2]

The

song has a quality described as "a cross between 'the serrated bark of a young dog and the clucking of turkeys'".[21] At the loudest part of the song, the bird has its neck bent so its head is touching its back. Both members of a pair as well as young down to the age of two weeks sing; often one member of a family starts a song just as another finishes, or two sing simultaneously. The song can be heard several kilometers away; in Emas National Park, Brazil, in 1981–1982, observers often heard four red-legged seriemas or groups singing at once.[16]

The full song consists of three sections:

  1. Repeated single notes at constant pitch (1,200 to 1,300 Hz) and duration but increasing tempo
  2. Repeated two- or three-note subphrases of slightly higher pitch with increasing tempo
  3. Subphrases of up to 10 notes, shorter ones rising in pitch and longer ones falling, two-subphrase combinations increasing in number of notes and tempo and then decreasing in tempo.

Their song was notably sampled by Boards of Canada on their track "Happy Cycling" on their debut album Music Has the Right to Children, which was taken from the Vangelis album La Fête Sauvage.

Diet

Red-legged seriemas are omnivorous, probably eating prey in response to its abundance.

corn (Zea) grains and other crops, wild fruits and tree gum. In captivity, and probably even in the wild, eggs and chicks of other bird species are also eaten.[2]

Seriemas typically feed alone or in pairs, seasonally in small family groups; they forage by walking steadily, looking for food on the ground or in low vegetation. Foraging birds sometimes remain obscured due to cryptic plumage colours.[2] It grabs small vertebrates in its beak and beats them against the ground before dismembering them with its beak and claws.

During a long term study in Arcos municipality, Minas Gerais, Brazil, a research team placed a camera trap at one of 44 seriema nests in their study area. On 29 September 2018 it recorded a 20 minute video of an adult killing one of three nestlings, eating part of it, and allowing the other two nestlings to feed on the carcass. It was the first documented parental infanticide and cannibalism by the species in the wild though it had been observed in a captive individual. The researchers note that very few red-legged seriema broods fledge three young and speculate that the third nestling serves as reserve food for the other two in times of stress.[22]

Reproduction

Seriemas are monogamous. In the wild, the breeding season correlates to the rainy months of February to July in the northeast of Brazil, September to January in central Brazil and November to December in Argentina.[23]

During the breeding season, the male, more intimidating or forcing himself on the female, spreads out his wings laterally, moving them forward and displaying the contrasting arrangement of the flight feathers, a pattern similar to that of certain birds of prey, such as the African secretarybird (Sagittarius serpentarius).[14] The display is often followed by a strut in front of the female, with the head pointing and the crest lifted. The male also gives food (from the normal diet) to the female. Both birds call, thereby reinforcing the bond between them as well as establishing the territories of the pair. Copulation takes place on the ground.[15]

Typically, 2–3 white, softly spotted eggs are laid. Incubation is done by both sexes, lasting 24–30 days. The chicks are coated with long, light brown feathers and are fed by both parents; initially, they weigh around 40–60 g (1.4–2.1 oz). At around 14 days of age, the chicks are able to leave their nests. At this time, the chick is able to make a call similar to the adult vocalization, although very faint,[23] to attract the parents' attention to itself.[14] Adult plumage is obtained in 4–5 months.[2]

Gallery

References

  1. doi:10.2305/IUCN.UK.2016-3.RLTS.T22692205A93341300.en
    . Retrieved 19 November 2021.
  2. ^ a b c d e f g Gonzaga, Luiz P.; Kirwan, Guy M. (2020-03-04). "Red-legged Seriema (Cariama cristata)". In Billerman, Shawn M.; Keeney, Brooke K.; Rodewald, Paul G.; Schulenberg, Thomas S. (eds.). Birds of the World. Cornell Lab of Ornithology. Retrieved 2020-11-15.
  3. ^ "Red-legged Seriema". Blair Drummond Safari & Adventure Park. 2018. Archived from the original on March 2, 2015.
  4. ^ 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.
  5. ^ 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. 516.
  6. ^ Gill, Frank; Donsker, David, eds. (2019). "Bustards, mesites, seriemas, Kagu, flufftails, finfoots". World Bird List Version 9.1. International Ornithologists' Union. Retrieved 9 April 2019.
  7. ^ a b 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.
  8. ^ 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. 203.
  9. doi:10.18542/moara.v1i36.1103
    .
  10. ISBN 978-0-226-05641-8
    .
  11. ^
    ISBN 1-55297-777-3
  12. ^ a b "Red-legged Seriema". Retrieved 2020-11-16.
  13. ^ Accordi, Iury Almeida & Barcellos, André (2006): Composição da avifauna em oito áreas úmidas da Bacia Hidrográfica do Lago Guaíba, Rio Grande do Sul [Bird composition and conservation in eight wetlands of the hidrographic basin of Guaíba lake, State of Rio Grande do Sul, Brazil]. Revista Brasileira de Ornitologia 14(2): 101–115 [Portuguese with English abstract]. PDF fulltext Archived 2008-12-19 at the Wayback Machine
  14. ^
    ISBN 978-85-209-0816-7
    .
  15. ^
    ISBN 0-7876-5785-9
    .
  16. ^ a b c d Redford, Kent H. & Peters, Gustav (1986). "Notes on the biology and song of the Red-legged Seriema (Cariama cristata)" (PDF). Journal of Field Ornithology. 57 (4): 261–269.
  17. ISSN 1075-4377
    . Retrieved 2020-11-16.
  18. ISSN 2662-673X
    .
  19. ^ "Red-legged Seriema | The Peregrine Fund". Retrieved 2020-11-16.
  20. ^ "Red Legged Seriema". www.woburnsafari.co.uk. Retrieved 2024-04-15.
  21. ^ H. Burmeister, quoted and translated by Redford & Peters (1986)
  22. doi:10.17632/xn8p7rxkyn.1
    .
  23. ^ a b AZA Red-legged Seriema SSP (2013). Red-legged Seriema (Cariama cristata) Care Manual. Association of Zoos and Aquariums, Silver Spring, MD. PDF

External links

Wikimedia Commons has media related to Cariama cristata.
Wikispecies has information related to Cariama cristata.
Wikisource has the text of the 1911 Encyclopædia Britannica article "Seriema".
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