Sitta yunnanensis 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Passeriformes Sittidae

Scientific Name: Sitta yunnanensis Ogilvie-Grant, 1900
Common Name(s):
English Yunnan Nuthatch, Black-masked Nuthatch
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.
Identification information: 12 cm. Small nuthatch with long, broad black mask and narrow white supercilium. Similar spp. Combination of size, supercilium, grey crown and uniform whitish underparts (including undertail-coverts), with only faint pale pinkish-buff wash, rule out other nuthatches in same range. Juveniles have narrower mask and shorter supercilium. Voice Calls include nasal kni, pi, tit and toik notes (former two often repeated) and harsh, scolding schri-schri-schri.., sometimes grading to strident, nasal ziew-ziew-ziew...

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2017
Date Assessed: 2016-10-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Facilitator/Compiler(s): Benstead, P., Gilroy, J., Khwaja, N., Westrip, J.
This species has a moderately small range, within which it is patchily distributed, and consequently it is thought to have a small global population size. Numbers are suspected to be declining owing to habitat loss, although it is apparently tolerant of some levels of habitat degradation; the species is therefore considered Near Threatened.

Previously published Red List assessments:

Geographic Range [top]

Range Description:Sitta yunnanensis is known from south-east Tibet, southern Sichuan and northern Yunnan, and the western extreme of Guizhou, China. The species was also reported in Arunachal Pradesh in March 2014 (Bonpo and Kuriakose 2014). It is locally common, but it has disappeared from several of the localities where it was recorded in the early 20th century.

Countries occurrence:
China; India
Additional data:
Continuing decline in area of occupancy (AOO):Yes
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:409000
Continuing decline in extent of occurrence (EOO):YesExtreme fluctuations in extent of occurrence (EOO):No
Continuing decline in number of locations:Unknown
Extreme fluctuations in the number of locations:NoLower elevation limit (metres):2400
Upper elevation limit (metres):3400
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The population size of this species has not been quantified, but it is described as locally common.

Trend Justification:  A moderate and on-going population decline is suspected to be occurring as a result of habitat degradation and clearance.
Current Population Trend:Decreasing
Additional data:
Number of mature individuals:UnknownContinuing decline of mature individuals:Yes
Extreme fluctuations:NoPopulation severely fragmented:No
Continuing decline in subpopulations:Unknown
Extreme fluctuations in subpopulations:NoAll individuals in one subpopulation:No

Habitat and Ecology [top]

Habitat and Ecology:This species occurs in open mature pine forest (avoiding other types of coniferous forest) with little undergrowth or scrub, mainly from 2,400-3,400 m.

Continuing decline in area, extent and/or quality of habitat:Yes
Generation Length (years):4
Movement patterns:Altitudinal Migrant

Threats [top]

Major Threat(s): This species is presumably continuing to decline as a result of logging and forest fires, although it does appear able to adapt to degraded and secondary forest.

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway

Conservation Actions Proposed
Conduct repeated surveys within the range to determine current distribution and abundance, as well as assess population trends and rates of habitat loss. Conduct ecological studies to improve understanding of its precise habitat requirements, particularly tolerance of secondary habitats and response to fragmentation. Effectively protect significant areas of suitable forest at key sites.

Amended [top]

Amended reason: Edited Geographic Information text, and added a country of occurrence. Also added a Facilitator/Compiler.

Citation: BirdLife International. 2017. Sitta yunnanensis (amended version of 2016 assessment). The IUCN Red List of Threatened Species 2017: e.T22711192A116898695. . Downloaded on 22 April 2018.
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