LC
Silver-throated Tit Aegithalos glaucogularis



Justification

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 under 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 size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (under 10,000 mature individuals with a continuing decline estimated to be over 10% in ten years or three generations, or with a specified population structure). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (over 30% decline over ten years or three generations). For these reasons the species is evaluated as Least Concern.

Population justification
The population size has not been quantified, but the species is described as 'widespread and fairly common' (Harrap 2016). The population is suspected to be fluctuating owing to the effects of severe winters and recorded range expansions and regional declines in recent decades (Harrap and Quinn 1996). In Europe, trends since 1980 show that populations have undergone a moderate decline (p<0.01), based on provisional data for 21 countries from the Pan-European Common Bird Monitoring Scheme (EBCC/RSPB/BirdLife/Statistics Netherlands; P. Vorisek in litt. 2008).

Trend justification
The population is suspected to be fluctuating owing to the effects of severe winters and recorded range expansions and regional declines in recent decades (Harrap and Quinn 1996). In Europe, trends since 1980 show that populations have undergone a moderate decline (p<0.01), based on provisional data for 21 countries from the Pan-European Common Bird Monitoring Scheme (EBCC/RSPB/BirdLife/Statistics Netherlands; P. Vorisek in litt. 2008).

Acknowledgements

Text account compilers
Rutherford, C.A.


Recommended citation
BirdLife International (2024) Species factsheet: Silver-throated Tit Aegithalos glaucogularis. Downloaded from https://datazone.birdlife.org/species/factsheet/silver-throated-tit-aegithalos-glaucogularis on 23/11/2024.
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 23/11/2024.