Grey-cowled Wood-rail Aramides cajaneus


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 <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 threshold for Vulnerable under the population trend criterion (>30% decline over ten years of three generations). The population size is extremely large, and hence does not 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.

Population justification
There is no evidence as to the population size, however it is thought to be very large.

Trend justification
The species is tentatively assessed as being in decline due to habitat loss per Tracewski et al. (2016).

Distribution and population

Grey-cowled Wood-rail occurs from central Costa Rica throughout South America, east of the Andes, into northern Argentina (Marcondes and Silveira 2015).


The species occurs in a wide variety of wet forests and marshes, scrub and agricultural areas, but may also occur far from water. It is tolerant of habitat modification (Taylor 2019).


The species is able to adapt to habitat modification, but thought likely to have been negatively impacted by habitat conversion (Taylor 2019).


Text account compilers
Elliott, N., Hermes, C.

Recommended citation
BirdLife International (2021) Species factsheet: Aramides cajaneus. Downloaded from on 09/12/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from on 09/12/2021.