Northern Wren (Troglodytes troglodytes) - BirdLife species factsheet

Northern Wren Troglodytes troglodytes

Current view: Data table and detailed info

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
2018	Least Concern
2016	Least Concern

Species attributes

Migratory status	full migrant	Forest dependency	medium
Land-mass type		Average mass	9 g

Distribution

	Estimate	Data quality
Extent of Occurrence breeding/resident (km²)	55,500,000	medium
Extent of Occurrence non-breeding (km²)	50,800,000	medium
Severely fragmented?	no	-

Population and trend

	Value	Data quality	Derivation	Year of estimate
Number of mature individuals	215000000-379999999	poor	estimated	2012
Population trend	increasing		estimated	-
Generation length (years)	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	Presence	Origin	Resident	Breeding	Non-breeding	Passage
Afghanistan	extant	native	yes
Albania	extant	native		yes
Algeria	extant	native
Andorra	extant	native	yes
Armenia	extant	native		yes
Austria	extant	native	yes
Azerbaijan	extant	native	yes
Belarus	extant	native	yes
Belgium	extant	native	yes
Bermuda (to UK)	extant	native
Bhutan	extant	native		yes
Bosnia and Herzegovina	extant	native		yes
Bulgaria	extant	native	yes
China (mainland)	extant	native		yes
Croatia	extant	native	yes
Cyprus	extant	native	yes
Czechia	extant	native	yes
Denmark	extant	native	yes			yes
Egypt	extant	native
Estonia	extant	native	yes
Faroe Islands (to Denmark)	extant	native	yes
Finland	extant	native	yes			yes
France	extant	native	yes
Georgia	extant	native		yes
Germany	extant	native	yes
Gibraltar (to UK)	extant	native	yes
Greece	extant	native	yes
Hungary	extant	native	yes
Iceland	extant	native	yes
India	extant	native		yes
Iran, Islamic Republic of	extant	native	yes
Iraq	extant	native	yes
Ireland	extant	native	yes
Israel	extant	native		yes
Italy	extant	native	yes
Japan	extant	native		yes
Jordan	extant	native	yes
Kazakhstan	extant	native		yes
Kuwait	extant	vagrant			yes
Kyrgyzstan	extant	native		yes
Latvia	extant	native	yes
Lebanon	extant	native	yes
Libya	extant	native
Liechtenstein	extant	native	yes
Lithuania	extant	native	yes
Luxembourg	extant	native	yes
Malta	extant	native
Moldova	extant	native	yes			yes
Mongolia	extant	native		yes
Montenegro	extant	native		yes
Morocco	extant	native
Myanmar	extant	native		yes
Nepal	extant	native		yes
Netherlands	extant	native	yes
North Korea	extant	native		yes
North Macedonia	extant	native	yes
Norway	extant	native		yes
Pakistan	extant	native		yes
Palestine	extant	native
Poland	extant	native		yes
Portugal	extant	native	yes
Romania	extant	native	yes
Russia	extant	native	yes	yes
Russia (Asian)	extant	native		yes
Russia (Central Asian)	extant	native	yes
Russia (European)	extant	native		yes
Serbia	extant	native		yes
Slovakia	extant	native	yes
Slovenia	extant	native	yes
South Korea	extant	native		yes
Spain	extant	native	yes
St Pierre and Miquelon (to France)	extant	native		yes		yes
Sweden	extant	native	yes
Switzerland	extant	native	yes
Syria	extant	native	yes
Taiwan, China	extant	native		yes
Tajikistan	extant	native		yes
Tunisia	extant	native
Türkiye	extant	native	yes
Turkmenistan	extant	native		yes
Ukraine	extant	native	yes			yes
United Kingdom	extant	native	yes
Uzbekistan	extant	native		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	non-breeding
Artificial/Terrestrial	Rural Gardens	suitable	breeding
Artificial/Terrestrial	Urban Areas	suitable	non-breeding
Artificial/Terrestrial	Urban Areas	suitable	breeding
Forest	Boreal	major	breeding
Forest	Subtropical/Tropical Moist Lowland	suitable	non-breeding
Forest	Subtropical/Tropical Moist Lowland	suitable	breeding
Forest	Temperate	major	non-breeding
Forest	Temperate	major	breeding
Shrubland	Boreal	suitable	non-breeding
Shrubland	Boreal	suitable	breeding
Shrubland	Temperate	suitable	non-breeding
Shrubland	Temperate	suitable	breeding
Altitude	0 - 4575 m	Occasional altitudinal limits

Utilisation

Purpose	Primary form used	Life stage used	Source	Scale	Level	Timing
Food - human	-	-			non-trivial	recent
Pets/display animals, horticulture	-	-		international	non-trivial	recent

Recommended citation
BirdLife International (2023) Species factsheet: Troglodytes troglodytes. Downloaded from http://datazone.birdlife.org/species/factsheet/northern-wren-troglodytes-troglodytes on 26/09/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 26/09/2023.