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Rufous-collared Sparrow

From Opus

Photo by Pere Sugranyes.Western Andes in Colombia, at 1650 meters asl, April 2003
Photo by Pere Sugranyes.
Western Andes in Colombia, at 1650 meters asl, April 2003
Zonotrichia capensis

Contents

[edit] Identification

Notice the breast streaking on this bird which therefore presumably is a younger birdPhoto by njlarsenValle Nuevo (Cordillera Central), Dominican Republic, September 2013
Notice the breast streaking on this bird which therefore presumably is a younger bird
Photo by njlarsen
Valle Nuevo (Cordillera Central), Dominican Republic, September 2013

11·8–13·4 cm (4¾-5¼)

  • Conical grey bill
  • Grey head
  • Broad black stripes on the crown sides
  • Thin stripes through the eye and below the cheeks
  • White throat
  • Rufous nape and breast sides
  • Buffish-brown upperparts with black streakss
  • Two white wing bars
  • Whitish underparts
  • Brown flanks
  • Black breast patch

Young birds have a duller, less distinct head pattern, with brown stripes and a buff ground colour. They lack the rufous collar, and have streaked underparts.

[edit] Variation

Male, Subspeciess chilensisPhoto by Luis RParcela Araguaney. Santiago de Chile, July 2016
Male, Subspeciess chilensis
Photo by Luis R
Parcela Araguaney. Santiago de Chile, July 2016

This is a very variable species[2]. Most subspecies with a strong crest, and with variation on how strongly patterned and dark the face is. Another heavily variable trait is extent of streaking, and to some extent color of neck band and breast band.
Subspecies australis: is larger than other races, lacks crown stripes, and has longer wings. It is one of the few subspecies that is migratory, moving north as far as Bolivia after nesting.

[edit] Distribution

All of South America except for the Amazon and Orinoco basins, Central America, southern Mexico, and Hispaniola.

[edit] Taxonomy

[edit] Subspecies

Presumed to be subspecies australisPhoto by jmorlanValle del Yeso, Región Metropolitana de Santiago, Chile, February 2018
Presumed to be subspecies australis
Photo by jmorlan
Valle del Yeso, Región Metropolitana de Santiago, Chile, February 2018

This is a polytypic species consisting of twenty-seven subspecies are currently recognized[1] (but revision has been called for[2]):

  • Z. c. septentrionalis: Highlands of southern Mexico (Chiapas) to Guatemala and Honduras
  • Z. c. antillarum: Cordillera Central of Dominican Republic
  • Z. c. costaricensis: Mountains of Costa Rica to western Panama; Andes of Colombia, western Venezuela
  • Z. c. insularis: Aruba and Curaçao
  • Z. c. venezuelae: Coastal cordillera of northern Venezuela
  • Z. c. roraimae: Southern Colombia (Meta) to eastern Venezuela, western Guyana and adjacent northern Brazil
  • Z. c. inaccessibilis: Tepuis of southern Venezuela (Cerro de la Neblina)
  • Z. c. perezchinchillorum: Tepuis of southern Venezuela (Amazonas)
  • Z. c. macconelli: Tepuis of southern Venezuela (Mount Roraima)
  • Z. c. capensis: French Guiana (lower Oyapock River) and adjaent Brazil (Amapá)
  • Z. c. tocantinsi: Eastern Brazil (lower Amazonia along Rio Tocantins)
  • Z. c. novaesi: Easst Brazil (Pará)
  • Z. c. matutina: North-East Brazil (Maranhão to Bahia and Mato Grosso) and adjacent eastern Bolivia
  • Z. c. huancabambae: Arid northern Peru (Piura, Cajamarca, Amazonas, San Martín and Junín)
  • Z. c. illescasensis: North Peru (Cerro Illescas in Piura)
  • Z. c. peruviensis: Arid coastal Peru and western slope of Andes (La Libertad to Tacna)
  • Z. c. carabayae: Eastern slope of Eastern Andes of Peru (Junín) to western Bolivia
  • Z. c. pulacayensis: Andes of Peru (Junín) to western Bolivia and northern Argentina
  • Z. c. subtorquata: East Brazil (Espírito Santo) to Paraguay, Uruguay and north-eastern Argentina
  • Z. c. mellea: Central Paraguay and adjacent north-central Argentina (Formosa)
  • Z. c. hypoleuca: East and southern Bolivia to north-eastern Argentina
  • Z. c. antofagastae: North Chile (Tarapacá and Antofagasta)
  • Z. c. chilensis: Chile (Atacama to Islas Guaitecas) and Andes of southern Argentina
  • Z. c. sanborni: Andes of Chile (Coquimbo, Aconcagua) and Argentina (San Juan)
  • Z. c. arenalensis: Andes of northern Argentina
  • Z. c. choraules: West Argentina (Mendoza, e Neuquén and Río Negro)
  • Z. c. australis: South Chile and southern Argentina to Cape Horn; winters north to Bolivia


[edit] Habitat

Cultivated open areas, gardens, parks and scrubland to alpine meadows. Mostly above 600 meters above sea level, though it can occur even in coastal areas (e.g. Lima and most of Chile, where it is one of the commonest birds).

[edit] Behaviour

[edit] Breeding

The cup-shaped nest is built by the female. It iss constructed from plant material and lined with fine grass. It is placed in dense vegetation on the ground, low in a tree or bush, or maybe a wall crevice. The clutch consists of 2-3 greenish-blue eggs with brown blotches. Incubation lastss about 12-14 days. The male helps to feed the chicks.

In Brazil these sparrows are parasitized by Shiny Cowbirds, which show a marked preference for their nests.

[edit] Diet

There is little firm information but their diet is likely to consist of seeds, fruit and arthropods, foraged on or near the ground.

[edit] Vocalisation

Song: a series of whistles ending with a trill. The song varies quite a lot geographically

[edit] References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2017, with updates to August 2017. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Birdforum thread discussing subspecies of Rufous-collared Sparrow
  3. Handbook of the Birds of the World Alive (retrieved July 2016)
  4. BF Member observations
  5. Wikipedia

[edit] External Links

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