Picture of Planet Scott, planetscott.com
The Wild Wild World of
PLANET SCOTT
Travel and nature photos

Thick-billed Siskin (Spinus crassirostris)

Thick-billed Siskin (Spinus crassirostris)

Thick-billed Siskin (Spinus crassirostris)


Class: Aves
Family: Fringillidae
Common Name: Thick-billed Siskin
Genus: Spinus
Species Name: crassirostris

About The Thick-billed Siskin


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
BirdLife International

Reviewer/s
Butchart, S. & Symes, A.

Contributor/s

Justification
This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

History
  • Least Concern (LC)
  • Least Concern (LC)
  • Least Concern (LC)
  • Lower Risk/least concern (LR/lc)
  • Lower Risk/least concern (LR/lc)
  • Lower Risk/least concern (LR/lc)


Rights Holder: International Union for Conservation of Nature and Natural Resources
Bibliographic Citation: BirdLife International 2012. Carduelis crassirostris. In: IUCN 2014 . IUCN Red List of Threatened Species. Version 2014.1 . <www.iucnredlist.org>

Trips Where Observed

Peru

Member Lifelists

South America
World

Sites Where Observed

Location
Date
Notes