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Variable Antshrike (Thamnophilus caerulescens)

Variable Antshrike (Thamnophilus caerulescens)

Variable Antshrike (Thamnophilus caerulescens) - Female



Variable Antshrike (Thamnophilus caerulescens) - Female Variable Antshrike (Thamnophilus caerulescens) - Male

Class: Aves
Family: Thamnophilidae
Common Name: Variable Antshrike
Genus: Thamnophilus
Species Name: caerulescens

About The Variable Antshrike


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 an extremely 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). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to 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. Thamnophilus caerulescens. 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