VU
Beautiful Nuthatch Sitta formosa



Taxonomy

Taxonomic note

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.
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
- - C2a(i)

Red List history
Year Category Criteria
2016 Vulnerable C2a(i)
2012 Vulnerable C2a(i)
2008 Vulnerable C2a(i)
2004 Vulnerable
2000 Vulnerable
1996 Vulnerable
1994 Vulnerable
1988 Threatened
Species attributes

Migratory status altitudinal migrant Forest dependency High
Land mass type Land-mass type - continent
Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,160,000 medium
Number of locations 11-100 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 2500-9999 poor estimated 2000
Population trend Decreasing poor suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 10-19 - - -
Decline (10 years/3 generation past and future) 10-19 - - -
Number of subpopulations 2-100 - - -
Largest subpopulations - - -
Generation length (yrs) 4 - - -

Population justification: The population is estimated to number 2,500-9,999 mature individuals, based on an assessment of recent records and surveys by BirdLife International (2001). This equates to 3,750-14,999 individuals, rounded here to 3,500-15,000 individuals.

Trend justification: A moderate population decline is suspected to be on-going, owing to the moderately rapid loss and degradation of habitats across the range.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Bhutan N Extant Yes
China (mainland) N Extant Yes
India N Extant Yes
Laos N Extant Yes
Myanmar N Extant Yes
Thailand N Extant
Vietnam N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Bhutan Deothang / Narphang / Samdrup Jongkhar
Bhutan Jigme Singye Wangchuk National Park
Bhutan Royal Manas National Park
Bhutan Thrumsing La National Park
China (mainland) Huanglianshan
India Buxa Tiger Reserve (National Park)
India Chaglagaum - Denning - Walong
India Chayang Tajo - Khenewa - Lada
India Dibang Wildlife Sanctuary
India Dichu Reserve Forest
India Dombang Valley - Lachung - Lema - Tsungthang
India Eaglenest and Sessa Sanctuaries
India Fambong Lho Wildlife Sanctuary - Himalayan Zoological Park - Ratey Chu Reserve Forest
India Jatinga
India Lava - Neora Valley National Park
India Lowland forests of South Sikkim (Melli-Baguwa-Kitam, Jorethang-Namchi, Sombarey)
India Maenam Wildlife Sanctuary - Tendong Reserve Forest
India Magu Thingbu
India Mechuka - Monigong - Jorgging
India Mouling National Park
India Nacho - Limeking - Taksing - Majha
India Nafra - Lada area
India Namdapha - Kamlang
India Namsangmukh - Borduria
India Shergaon, Mandla - Phudung and Kalaktang
India Singhalila National Park
India Taley Valley Wildlife Sanctuary
India Upper Dihing (West) Complex
India Zemithang - Nelya
Laos Nakai-Nam Theun
Laos Nam Xam
Laos Phou Loeuy
Myanmar Hkakaborazi
Myanmar Hponkanrazi
Thailand Doi Phukha
Vietnam Du Gia
Vietnam Fan Si Pan
Vietnam Tay Con Linh
Vietnam Van Ban

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane major resident
Forest Temperate major resident
Altitude 600 - 2400 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines
Stresses
Species mortality
Biological resource use Logging & wood harvesting Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines
Stresses
Ecosystem degradation
Biological resource use Logging & wood harvesting Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines
Stresses
Ecosystem degradation
Natural system modifications Fire & fire suppression Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets Whole Adults and juveniles Wild Non-trivial Recent
Pets Whole Adults and juveniles Wild International Non-trivial Recent

Recommended citation
BirdLife International (2019) Species factsheet: Sitta formosa. Downloaded from http://www.birdlife.org on 24/09/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 24/09/2019.