Data Zone
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 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
The global population is inferred to number 7.2 million mature individuals (Partners in Flight 2022).
Trend justification
The species has been undergoing a moderate decline at an average rate of 1.3% per year between 1970 and 2017 (Partners in Flight 2022). This equates to a decline of 12% over ten years. The population in North America has declined by 19% over the past ten years, though this value is non-significant (Pardieck et al. 2018). The population however fluctuates between years depending on insect availability (Webster 2020).
Text account compilers
Hermes, C., Bell, F.
Contributors
Butchart, S. & Ekstrom, J.
Recommended citation
BirdLife International (2024) Species factsheet: Verdin Auriparus flaviceps. Downloaded from
https://datazone.birdlife.org/species/factsheet/verdin-auriparus-flaviceps 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.