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). The population trend appears to be stable, 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 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
Partners in Flight estimate the total population to number 5,000,000-50,000,000 individuals (A. Panjabi in litt. 2008).
Trend justification
This species's population is suspected to be stable owing to its nomadic nature and ability to thrive in a wide range of open habitats (del Hoyo et al. 2004).
Text account compilers
Ekstrom, J., Butchart, S.
Recommended citation
BirdLife International (2024) Species factsheet: Fork-tailed Flycatcher Tyrannus savana. Downloaded from
https://datazone.birdlife.org/species/factsheet/fork-tailed-flycatcher-tyrannus-savana on 26/12/2024.
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 26/12/2024.