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
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 (2018) Species factsheet: Troglodytes troglodytes. Downloaded from http://www.birdlife.org on 22/06/2018. Recommended citation for factsheets for more than one species: BirdLife International (2018) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/06/2018.