Brown-headed Nuthatch (Sitta pusilla) - BirdLife species factsheet

Brown-headed Nuthatch Sitta pusilla

Current view: Data table and detailed info

Taxonomy

Taxonomic note
Sitta pusilla and S. insularis (del Hoyo and Collar 2016) were previously lumped as S. pusilla following AOU (1998 & supplements), 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
2012	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

Species attributes

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

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	1,710,000 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 years	-	-	-

Trend justification: Analyses of trend data from the North American Breeding Bird Survey suggest a 24% decline between 1966 and 2013 (Sauer et al. 2014). However, analyses of the trend between 2003 and 2013 shows only a non-significant decline of 0.2% per year during that time period (Sauer et al. 2014).

Country/territory distribution

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Turks and Caicos Islands (to UK)	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	Subtropical/Tropical Dry	major	resident
Forest	Subtropical/Tropical Swamp	suitable	resident
Altitude		Occasional altitudinal limits	(max) 670 m

Recommended citation
BirdLife International (2024) Species factsheet: Brown-headed Nuthatch Sitta pusilla. Downloaded from https://datazone.birdlife.org/species/factsheet/brown-headed-nuthatch-sitta-pusilla on 22/11/2024.
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 22/11/2024.