Data Zone
Justification of Red List category
This species has an extremely 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 has not been quantified, but it is not believed to 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). The population trend is not known, but the population is not believed to be decreasing sufficiently rapidly to approach the thresholds 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 justification
The global population size has not been quantified, but this species was described as 'fairly common but patchily distributed', prior to being split (Stotz et al. 1996). This species spreads into areas following deforestation (del Hoyo et al. 2004), and is therefore suspected to be increasing overall.
Trend justification
This species spreads into areas following deforestation (del Hoyo et al. 2004), and is therefore suspected to be increasing overall.
Subspecies P. m. eremonoma occurring in the Pacific lowlands of S Costa Rica and Panama (Chiriquí to Panamá). Subspecies P. m. incomta occurring in Colombia (N and Andes) and NE Ecuador E to Venezuela (except S Amazonas), Trinidad (including Monos I), Suriname and the Guianas. Subspecies P. m. wagae occurring in the Guianas, Amazonian Brazil, E Peru and N Bolivia. Subspecies P. m. murina occurring in C, E & S Brazil (Maranhão, Ceará and Pernambuco S to Mato Grosso and São Paulo), C & S Bolivia (Cochabamba S to Tarija), Paraguay and NW & NE Argentina (S to La Rioja and E Chaco).
Text account compilers
Rutherford, C.A.
Recommended citation
BirdLife International (2024) Species factsheet: Mouse-colored Tyrannulet Phaeomyias murina. Downloaded from
https://datazone.birdlife.org/species/factsheet/mouse-colored-tyrannulet-phaeomyias-murina on 22/12/2024.
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 22/12/2024.