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Yellow-billed Nuthatch Sitta solangiae

Justification
This species has a relatively small and patchy range, and is scarce or local in most areas. It is therefore suspected to have a moderately small global population size. It is likely to be declining in some areas owing to habitat loss, and is therefore considered Near Threatened.

Taxonomic source(s)
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

Distribution and population
This species is known from three or four widely disjunct areas: the Hoang Lien Son mountains in north-west Tonkin, the Da Lat plateau in southern Annam, Vietnam, the Kon Tum plateau of Vietnam and south-east Laos, and Hainan island, south-east China. There are recent records from Hainan, several localities on the Da Lat plateau, where surveys since 1990 have recorded small numbers, and the Xe Sap region in Laos.

Population justification
The global population size has not been quantified. Anecdotal accounts suggest it is not as rare as previously thought in north-west Vietnam, it may be rather common on the Da Lat Plateau, and it is not uncommon in good forest on Hainan. Its status on the Kon Tum Plateau is uncertain (del Hoyo et al. 2008).

Trend justification
A slow and on-going population decline is suspected owing to on-going forest loss throughout the species's range. The magnitude of these declines may be relatively slight as this species is tolerant of logged forests.

Ecology
This species occurs in primary and logged evergreen forest at 900-2,500 m.

Threats
The major threat throughout the range of this species is deforestation. Forest cover on Hainan fell from an estimated 8,630 km2 (25.7%) in 1949 to c.2,420 km2 (7.2%) in 1991, and much of the Da Lat plateau is being cleared by shifting cultivation, charcoal burning and fuelwood collection, factors that are intensifying after government re-settlement programmes.

Conservation Actions Underway
It occurs in several protected areas such as Bawangling and Jiangfengling nature reserves in Hainan, Chu Yang Sin and Ngoc Linh nature reserves in Vietnam, and Xe Sap National Biodiversity Conservation Area in Laos. 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 forest within the protected area network.

References
BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.

del Hoyo, J.; Elliott, A.; Christie, D. 2008. Handbook of the Birds of the World, vol. 13: Penduline-tits to Shrikes. Lynx Edicions, Barcelona, Spain.

Further web sources of information
Detailed species accounts from the Threatened birds of Asia: the BirdLife International Red Data Book (BirdLife International 2001).

Explore HBW Alive for further information on this species

Search for photos and videos, and hear sounds of this species from the Internet Bird Collection

Text account compilers
Benstead, P., Calvert, R., Gilroy, J., Khwaja, N., Mahood, S.

Contributors
Pilgrim, J.

IUCN Red List evaluators
Butchart, S., Symes, A.

Recommended citation
BirdLife International (2014) Species factsheet: Sitta solangiae. Downloaded from http://www.birdlife.org on 25/10/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 25/10/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Near Threatened
Family Sittidae (Nuthatches and Wallcreeper)
Species name author (Delacour & Jabouille, 1930)
Population size Unknown mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 23,700 km2
Country endemic? No
Links to further information
- Additional Information on this species