The cinereous harrier (Circus cinereus) is a South American bird of prey of the harrier family. Its breeding range extends from the Tierra del Fuego through Argentina and Chile to Bolivia, Paraguay, Peru and southern Brazil; and across the Andes north to Colombia. The bird's population is declining but due to its large range is not considered vulnerable.[2] The term cinereous, deriving from the Latin word for ashy, describes its colouration.[3]
The male's plumage is dark grey above with black wingtips and a white rump. The underparts are pale grey, with a rufous streaked belly. The female's plumage is brown above, with a white rump, and cream coloured underneath, with a streaked belly similar to the males. The female is larger than the male with an average size of 46 cm (18 in) compared to the male's 40 cm (16 in). The wingspan is 90–115 cm (35–45 in). Since the 44.5 cm (17.5 in) tail comprises about 56% of this raptor's total length, this species ties with the long-tailed hawk as the raptor with the longest tail relative to its body size.[4]
Habitat and ecologyedit
This bird can be found in different open habitats, ranging from lowland marshes to the AndeanAltiplano at a maximum altitude of 4000 meters (13123 ft). Like other harriers it nests on the ground. It is usually considered to be sedentary, and may migrate during April and May and returning to breeding grounds between September and October.[5]
Reproductionedit
During the breeding season, males and females engage in large aerial courtship displays and chatter very loudly. Eggs are laid in November and fledged by January. Nests are located in vegetation and up to 40 centimetres (16 in) across and 30 centimetres (12 in) deep.[6]
Dietedit
Its diet is variable, due to a wide range and variety of habitats. Its usual prey are small rodents and birds, notably chicks of coots and waders, reptiles, amphibians and insects.[7]
Referencesedit
^BirdLife International (2016). "Circus cinereus". IUCN Red List of Threatened Species. 2016: e.T22695393A93506437. doi:10.2305/IUCN.UK.2016-3.RLTS.T22695393A93506437.en. Retrieved 12 November 2021.
^. Archived from the original on 2014-03-05. Retrieved 2013-12-07.
^Raptors of the World by Ferguson-Lees, Christie, Franklin, Mead & Burton. Houghton Mifflin (2001), ISBN0-618-12762-3
^Gould, J. and Darwin, C.R. (1839) Birds Part 3 No. 2 of The zoology of the voyage of H.M.S. Beagle. Smith Elder and Co
^Ferguson-Lees, J.; Christie, D.A. (2001). Raptors of the World: An Identification Guide to the Birds of Prey of the World. New York: Houghton Mifflin.
^"Birds of the World - Comprehensive life histories for all bird species and families".
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cinereous, harrier, cinereous, harrier, circus, cinereus, south, american, bird, prey, harrier, family, breeding, range, extends, from, tierra, fuego, through, argentina, chile, bolivia, paraguay, peru, southern, brazil, across, andes, north, colombia, bird, p. The cinereous harrier Circus cinereus is a South American bird of prey of the harrier family Its breeding range extends from the Tierra del Fuego through Argentina and Chile to Bolivia Paraguay Peru and southern Brazil and across the Andes north to Colombia The bird s population is declining but due to its large range is not considered vulnerable 2 The term cinereous deriving from the Latin word for ashy describes its colouration 3 Cinereous harrierMale flying in Rio Grande do Sul BrazilConservation statusLeast Concern IUCN 3 1 1 Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass AvesOrder AccipitriformesFamily AccipitridaeGenus CircusSpecies C cinereusBinomial nameCircus cinereusVieillot 1816 Contents 1 Description 2 Habitat and ecology 3 Reproduction 4 Diet 5 ReferencesDescription editThe male s plumage is dark grey above with black wingtips and a white rump The underparts are pale grey with a rufous streaked belly The female s plumage is brown above with a white rump and cream coloured underneath with a streaked belly similar to the males The female is larger than the male with an average size of 46 cm 18 in compared to the male s 40 cm 16 in The wingspan is 90 115 cm 35 45 in Since the 44 5 cm 17 5 in tail comprises about 56 of this raptor s total length this species ties with the long tailed hawk as the raptor with the longest tail relative to its body size 4 Habitat and ecology editThis bird can be found in different open habitats ranging from lowland marshes to the Andean Altiplano at a maximum altitude of 4000 meters 13123 ft Like other harriers it nests on the ground It is usually considered to be sedentary and may migrate during April and May and returning to breeding grounds between September and October 5 Reproduction editDuring the breeding season males and females engage in large aerial courtship displays and chatter very loudly Eggs are laid in November and fledged by January Nests are located in vegetation and up to 40 centimetres 16 in across and 30 centimetres 12 in deep 6 Diet editIts diet is variable due to a wide range and variety of habitats Its usual prey are small rodents and birds notably chicks of coots and waders reptiles amphibians and insects 7 References edit BirdLife International 2016 Circus cinereus IUCN Red List of Threatened Species 2016 e T22695393A93506437 doi 10 2305 IUCN UK 2016 3 RLTS T22695393A93506437 en Retrieved 12 November 2021 Cinereous Harrier Circus cinereus BirdLife species factsheet Archived from the original on 2013 12 12 Cinereous harrier videos photos and facts Circus cinereus ARKive Archived from the original on 2014 03 05 Retrieved 2013 12 07 Raptors of the World by Ferguson Lees Christie Franklin Mead amp Burton Houghton Mifflin 2001 ISBN 0 618 12762 3 Gould J and Darwin C R 1839 Birds Part 3 No 2 of The zoology of the voyage of H M S Beagle Smith Elder and Co Ferguson Lees J Christie D A 2001 Raptors of the World An Identification Guide to the Birds of Prey of the World New York Houghton Mifflin Birds of the World Comprehensive life histories for all bird species and families nbsp Wikimedia Commons has media related to Circus cinereus nbsp Wikispecies has information related to Circus cinereus nbsp This Accipitriformes article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Cinereous harrier amp oldid 1188551003, wikipedia, wiki, book, books, library,
