Kalpana Kalpana (Editor)

Thick billed siskin

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Kingdom
  
Order
  
Passeriformes

Genus
  
Spinus

Higher classification
  
Spinus

Phylum
  
Chordata

Family
  
Fringillidae

Scientific name
  
Spinus crassirostris

Rank
  
Species

Thick-billed siskin wwwbirdforumnetopusimages99dThickbilledSi

Similar
  
Yellow‑rumped siskin, Saffron siskin, Bird, Black‑capped siskin, Olivaceous siskin

Jilguero grande carduelis crassirostris thick billed siskin aves de chile


The thick-billed siskin (Spinus crassirostris) is a species of finch in the family Fringillidae. Found in Argentina, Bolivia, Chile, and Peru, its natural habitats are subtropical or tropical moist montane forests and subtropical or tropical high-altitude shrubland.

Contents

Carduelis crassirostros thick billed siskin diksnavelsijs


Description

The thick-billed siskin has an adult length of between 13.5 and 14 centimetres (5.3 and 5.5 in). The bill often has a silvery base and is noticeable thicker than other related siskins. The male closely resembles the hooded siskin (Carduelis magellanica) and has a black head and throat, greenish-yellow upper parts (sometimes streaked with dark markings) and bright yellow underparts. It differs from the hooded siskin in having a whitish-grey midbelly. The immature male has a black head but is otherwise less conspicuous than the mature male, being more greyish-olive above and greyish below. The female is similar but lacks the black head and is altogether much duller in appearance, more greyish-olive, with paler underparts.

Distribution and habitat

This bird of the high Andes ranges from western Peru and central Chile to northwestern Argentina. Its altitudinal range is 3,000 to 4,000 metres (10,000 to 13,000 ft) in the northern part of its range but descends to 2,100 metres (7,000 ft) further south. Typical habitat is Polylepis woodland and open country with scrub.

Status

S. crassirostris is an uncommon species with a patchy distribution within its range. However, it has a very wide range and the population seems stable so the International Union for Conservation of Nature has rated it as being a least-concern species.

References

Thick-billed siskin Wikipedia