LC
Northern Wren Troglodytes troglodytes



Taxonomy

Taxonomic note
Troglodytes troglodytes, T. pacificus and T. hiemalis (del Hoyo and Collar 2016) were previously lumped as T. troglodytes following AERC TAC (2003), AOU (1998 & supplements), Cramp et al. (1977-1994), Sibley & Monroe (1990, 1993) and Stotz et al. (1996).

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 full migrant Forest dependency Medium
Land mass type Average mass 8.899999619 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 56,800,000 medium
Extent of Occurrence non-breeding (km2) 50,900,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 215000000-379999999 poor estimated 2012
Population trend Increasing 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) 3.5 - - -

Population justification: In Europe, the breeding population is estimated to number 32,700,000-56,500,000 pairs, which equates to 65,300,000-113,000,000 mature individuals (BirdLife International 2015). National population estimates include: c.10,000-100,000 breeding pairs in China; c.100-100,000 breeding pairs in Taiwan; possibly c.10,000-100,000 breeding pairs in Korea; c.100-100,000 breeding pairs in Japan and possibly c.10,000-100,000 breeding pairs and c.1,000-10,000 individuals on migration in Russia (Brazil 2009). It is likely that the global population is within the range 10,000,000-500,000,000 mature individuals.

Trend justification: In Europe the overall trend from 1980-2013 was increasing (EBCC 2015).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Afghanistan N Extant Yes
Albania N Extant Yes
Algeria N Extant
Andorra N Extant Yes
Armenia N Extant Yes
Austria N Extant Yes
Azerbaijan N Extant Yes
Belarus N Extant Yes
Belgium N Extant Yes
Bermuda (to UK) N Extant
Bhutan N Extant Yes
Bosnia and Herzegovina N Extant Yes
Bulgaria N Extant Yes
China (mainland) N Extant Yes
Croatia N Extant Yes
Cyprus N Extant Yes
Czech Republic N Extant Yes
Denmark N Extant Yes Yes
Egypt N Extant
Estonia N Extant Yes
Faroe Islands (to Denmark) N Extant Yes
Finland N Extant Yes Yes
France N Extant Yes
Georgia N Extant Yes
Germany N Extant Yes
Gibraltar (to UK) N Extant Yes
Greece N Extant Yes
Hungary N Extant Yes
Iceland N Extant Yes
India N Extant Yes
Iran, Islamic Republic of N Extant Yes
Iraq N Extant Yes
Ireland N Extant Yes
Israel N Extant Yes
Italy N Extant Yes
Japan N Extant Yes
Jordan N Extant Yes
Kazakhstan N Extant Yes
Kuwait V Extant Yes
Kyrgyzstan N Extant Yes
Latvia N Extant Yes
Lebanon N Extant Yes
Libya N Extant
Liechtenstein N Extant Yes
Lithuania N Extant Yes
Luxembourg N Extant Yes
Macedonia, the former Yugoslav Republic of N Extant Yes
Malta N Extant
Moldova N Extant Yes Yes
Mongolia N Extant Yes
Montenegro N Extant Yes
Morocco N Extant
Myanmar N Extant Yes
Nepal N Extant Yes
Netherlands N Extant Yes
North Korea N Extant Yes
Norway N Extant Yes
Pakistan N Extant Yes
Palestinian Authority Territories N Extant
Poland N Extant Yes
Portugal N Extant Yes
Romania N Extant Yes
Russia N Extant Yes Yes
Russia (Asian) N Extant Yes
Russia (Central Asian) N Extant Yes
Russia (European) N Extant Yes
Serbia N Extant Yes
Slovakia N Extant Yes
Slovenia N Extant Yes
South Korea N Extant Yes
Spain N Extant Yes
St Pierre and Miquelon (to France) N Extant Yes Yes
Sweden N Extant Yes
Switzerland N Extant Yes
Syria N Extant Yes
Taiwan (China) N Extant Yes
Tajikistan N Extant Yes
Tunisia N Extant
Turkey N Extant Yes
Turkmenistan N Extant Yes
Ukraine N Extant Yes Yes
United Kingdom N Extant Yes
Uzbekistan 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 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 major breeding
Forest Subtropical/Tropical Moist Lowland suitable breeding
Forest Subtropical/Tropical Moist Lowland suitable non-breeding
Forest Temperate major breeding
Forest Temperate major non-breeding
Shrubland Boreal suitable breeding
Shrubland Boreal suitable non-breeding
Shrubland Temperate suitable breeding
Shrubland Temperate suitable non-breeding
Altitude 0 - 4575 m Occasional altitudinal limits  

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

Recommended citation
BirdLife International (2017) Species factsheet: Troglodytes troglodytes. Downloaded from http://www.birdlife.org on 12/12/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 12/12/2017.