Allen's Hummingbird Selasphorus sasin


Justification of Red List Category
Although this species may have a restricted range, it is not believed to 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). The population trend appears to be increasing, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is very 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.

Trend justification
This species has been increasing over the last 50 years in North America (T. Meehan in litt. 2018, data from Christmas Bird Count).


Text account compilers
Hermes, C., Butchart, S., Ekstrom, J., Westrip, J.

Meehan, T.

Recommended citation
BirdLife International (2020) Species factsheet: Selasphorus sasin. Downloaded from on 19/02/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from on 19/02/2020.