Data Zone
Justification of Red List category
This species has a very 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 is not believed to approach the thresholds for Vulnerable (<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 is unknown given recent taxonomic splits.
Trend justification
The species is undergoing a small decline (Partners in Flight 2019).
Text account compilers
Wheatley, H., Hermes, C.
Contributors
Butchart, S., Ekstrom, J. & Miller, E.
Recommended citation
BirdLife International (2024) Species factsheet: Paltry Tyrannulet Zimmerius vilissimus. Downloaded from
https://datazone.birdlife.org/species/factsheet/paltry-tyrannulet-zimmerius-vilissimus on 20/12/2024.
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 20/12/2024.