LC
Ashy Antwren Myrmotherula grisea



Family: Thamnophilidae (Typical Antbirds)

Authority: Carriker, 1935

Red List Category

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Justification of Red List category
This species has a large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence under 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 size is large, and hence does not approach the thresholds for Vulnerable under the population size criterion (under 10,000 mature individuals with a continuing decline estimated to be over 10% in ten years or three generations, or with a specified population structure). 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 (over 30% decline over ten years or three generations). For these reasons the species is evaluated as Least Concern.

Population size: 46000-54000 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 186,000 km2

Country endemic: no

Attributes
Land-mass type - continent
Realm - Neotropical
IUCN System - Terrestrial

Recommended citation
BirdLife International (2024) Species factsheet: Ashy Antwren Myrmotherula grisea. Downloaded from https://datazone.birdlife.org/species/factsheet/ashy-antwren-myrmotherula-grisea on 22/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 22/11/2024.