Boreal Chickadee (Poecile hudsonicus) - BirdLife species factsheet

Boreal Chickadee Poecile hudsonicus

Current view: Data table and detailed info

Taxonomy

Taxonomic note
Poecile hudsonicus (del Hoyo and Collar 2016) was previously listed as Parus hudsonicus.

Taxonomic source(s)
AOU. 1998. Check-list of North American birds. American Ornithologists' Union, Washington, D.C.
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.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

IUCN Red list criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2016	Least Concern
2012	Least Concern
2009	Least Concern
2008	Least Concern
2004	Least Concern
2000	Lower Risk/Least Concern
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

Species attributes

Migratory status	not a migrant	Forest dependency	High
Land mass type		Average mass	10 g

Distribution

	Estimate	Data quality
Extent of Occurrence breeding/resident (km2)	11,300,000	medium
Number of locations		-
Severely Fragmented		-

Population and trend

	Value	Data quality	Derivation	Year of estimate
No. of mature individuals		poor	estimated	2009
Population trend	Decreasing		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		-	-	-
Percentage in largest subpopulation		-	-	-
Generation length (yrs)	4.2	-	-	-

Trend justification: This species has undergone a large and statistically significant decrease over the last 40 years in North America (-73.3% decline over 40 years, equating to a -28.1% decline per decade; data from Breeding Bird Survey and/or Christmas Bird Count: Butcher a.

Country/territory distribution

Country/Territory	Occurrence status	Presence	Resident	Breeding
Canada	N	Extant	Yes
St Pierre and Miquelon (to France)	N	Extant	Yes
USA	N	Extant		Yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Boreal	major	resident
Forest	Temperate	suitable	resident
Altitude	0 - 2070 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2021) Species factsheet: Poecile hudsonicus. Downloaded from http://www.birdlife.org on 25/10/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 25/10/2021.