Lesser Elaenia Elaenia chiriquensis


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 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.

Population justification
The global population size has not been quantified, but this species was described as 'common', prior to being split (Stotz et al. (1996).

Trend justification
The population is suspected to be in decline owing to fires, over-grazing by cattle, slash-and burn agriculture and selective logging (del Hoyo et al. 2004).

Distribution and population

Tropical zone of SW Costa Rica and Pacific slope of W Panama E to Canal Zone, including Coiba I and Pearl Is (also on Caribbean slope in C Colón). Subspecies E. c. albivertex occurring in N, C & E Colombia, Venezuela, Trinidad, the Guianas, scattered localities throughout N, E & C Brazil (S to São Paulo; apparently absent from upper Amazon Basin), E Peru, N & E Bolivia, Paraguay and NW & NE Argentina.


Text account compilers
Butchart, S., Ekstrom, J., Hardenbol, A.

Recommended citation
BirdLife International (2021) Species factsheet: Elaenia chiriquensis. Downloaded from on 29/11/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from on 29/11/2021.