LC
Boreal Chickadee Poecile hudsonicus



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
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 11,300,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown poor estimated 2009
Population trend decreasing - estimated -
Generation length 4.2 years - - -

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 Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Canada extant native yes
St Pierre and Miquelon (to France) extant native yes
USA extant native 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 (2024) Species factsheet: Boreal Chickadee Poecile hudsonicus. Downloaded from https://datazone.birdlife.org/species/factsheet/boreal-chickadee-poecile-hudsonicus on 15/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 15/12/2024.