LC
Long-tailed Tit Aegithalos caudatus



Taxonomy

Taxonomic note
Aegithalos caudatus and A. glaucogularis (del Hoyo and Collar 2016) were previously lumped as A. caudatus following AERC TAC (2003), Cramp et al. (1977-1994) and Sibley & Monroe (1990, 1993).

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
Species attributes

Migratory status not a migrant Forest dependency Low
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 44,600,000 medium
Extent of Occurrence non-breeding (km2) 18,700,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 40000-79999999 poor estimated 2012
Population trend Stable estimated -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 4.2 - - -

Population justification: In Europe, the breeding population is estimated to number 8,310,000-15,000,000 pairs, which equates to 16,600,000-30,100,000 mature individuals (BirdLife International 2015). Europe forms c.40% of the global range, so a very preliminary estimate of the global population size is 41,500,000-75,250,000 mature individuals, although further validation of this estimate is needed. National population estimates include: c.10,000-100,000 breeding pairs in China; c.10,000-100,000 breeding pairs in Korea; c.10,000-100,000 breeding pairs in Japan and c.10,000-100,000 breeding pairs in Russia (Brazil 2009).

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 between 1980 and 2013 show that the population is stable (EBCC 2015).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Albania N Extant Yes
Andorra N Extant Yes
Armenia N Extant Yes
Austria N Extant Yes
Azerbaijan N Extant Yes
Belarus N Extant Yes
Belgium N Extant Yes
Bosnia and Herzegovina N Extant Yes
Bulgaria N Extant Yes
China (mainland) N Extant Yes
Croatia N Extant Yes
Czechia N Extant Yes
Denmark N Extant Yes Yes
Estonia N Extant Yes
Finland N Extant Yes Yes
France N Extant Yes
Georgia N Extant Yes
Germany N Extant Yes
Gibraltar (to UK) V Extant
Greece N Extant Yes
Hungary N Extant Yes
Iran, Islamic Republic of N Extant Yes
Iraq N Extant Yes
Ireland N Extant Yes
Italy N Extant Yes
Japan N Extant Yes
Kazakhstan N Extant Yes
Kyrgyzstan N Extant Yes
Latvia N Extant Yes
Liechtenstein N Extant Yes
Lithuania N Extant Yes
Luxembourg N Extant Yes
Moldova N Extant Yes
Mongolia N Extant Yes
Montenegro N Extant Yes
Morocco V Extant
Netherlands N Extant Yes
North Korea N Extant Yes
North Macedonia N Extant Yes
Norway N Extant Yes
Poland N Extant Yes
Portugal N Extant Yes
Romania N Extant Yes
Russia N Extant Yes
Russia (Asian) N Extant Yes
Russia (Central Asian) N Extant Yes
Russia (European) N Extant Yes Yes
Serbia N Extant Yes
Slovakia N Extant Yes
Slovenia N Extant Yes
South Korea N Extant Yes
Spain N Extant Yes
Sweden N Extant Yes
Switzerland N Extant Yes
Syria N Extant Yes
Tunisia V Extant
Turkey N Extant Yes
Turkmenistan N Extant Yes
Ukraine N Extant Yes Yes
United Kingdom N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land suitable breeding
Artificial/Terrestrial Arable Land suitable non-breeding
Artificial/Terrestrial Pastureland suitable breeding
Artificial/Terrestrial Pastureland suitable non-breeding
Artificial/Terrestrial Rural Gardens suitable breeding
Artificial/Terrestrial Rural Gardens suitable non-breeding
Artificial/Terrestrial Urban Areas suitable breeding
Artificial/Terrestrial Urban Areas suitable non-breeding
Forest Boreal suitable breeding
Forest Boreal suitable non-breeding
Forest Temperate major non-breeding
Forest Temperate major breeding
Shrubland Mediterranean-type Shrubby Vegetation suitable non-breeding
Shrubland Mediterranean-type Shrubby Vegetation suitable breeding
Shrubland Temperate suitable breeding
Shrubland Temperate suitable non-breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable non-breeding
Altitude   Occasional altitudinal limits  

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets/display animals, horticulture - - Non-trivial Recent

Recommended citation
BirdLife International (2019) Species factsheet: Aegithalos caudatus. Downloaded from http://www.birdlife.org on 14/11/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 14/11/2019.