Rusty-flanked Treecreeper (Certhia nipalensis)

Rusty-flanked Treecreeper Certhia nipalensis

Current view: Data table and detailed info

Taxonomy

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
2024	Least Concern
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	altitudinal migrant	Forest dependency	high
Land-mass type		Average mass	11 g

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	682,000 km²
Extent of Occurrence (non-breeding)	775,000 km²
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	suspected	-
Generation length	2.08 years	-	-	-

Population justification: The global population size has not been quantified, but the species is reported to be fairly common in the Himalayas (Harrap and Quinn 1996). This species is considered to have a high dependency on forest habitat, and tree cover is estimated to have declined by 0.6% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). It is therefore tentatively suspected that this rate of cover loss may have led to a decline of between 1-19% in the species' population size over the same time frame, with a best estimate of reduction being less than 5%.

Trend justification: .

Country/territory distribution

Country/Territory	Presence	Origin
Bhutan	extant	native
China (mainland)	extant	native
India	extant	native
Myanmar	extant	native
Nepal	extant	native

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Nepal	Annapurna Conservation Area
Nepal	Dhorpatan Hunting Reserve
Nepal	Kanchenjungha Conservation Area
Nepal	Khaptad National Park
Nepal	Langtang National Park
Nepal	Mai Valley forests
Nepal	Makalu Barun National Park
Nepal	Phulchoki Mountain forests
Nepal	Rara National Park
Nepal	Sagarmatha National Park
Nepal	Shivapuri-Nagarjun National Park
Nepal	Tamur valley and watershed

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Temperate	major	resident
Altitude	1070 - 5240 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Rusty-flanked Treecreeper Certhia nipalensis. Downloaded from https://datazone.birdlife.org/species/factsheet/rusty-flanked-treecreeper-certhia-nipalensis 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.