EN
Giant Nuthatch Sitta magna



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) C2a(i)

Red List history
Year Category Criteria
2016 Endangered C2a(i)
2013 Endangered C2a(i)
2012 Vulnerable C2a(i)
2008 Vulnerable C2a(i)
2004 Vulnerable
2000 Vulnerable
1996 Vulnerable
1994 Vulnerable
1988 Threatened
Species attributes

Migratory status not a 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) 527,000 medium
Number of locations 11-100 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 1000-2499 medium estimated 2013
Population trend Decreasing poor inferred -
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 was previously estimated to number 2,500-9,999 mature individuals based on an assessment of recent records and surveys by BirdLife International (2001). However, recent evidence implies that the population could be smaller than this. The population in Yunnan, which accounts for the majority of records, has been estimated at 800-2,000 mature individuals, with only 6-50 mature individuals in the largest subpopulation (Han Lianxian in litt. 2012, 2013). The global population is therefore placed in the band for 1,000-2,499 mature individuals, roughly equivalent to 1,500-3,800 individuals in total.

Trend justification: A moderate and on-going population decline is suspected to be occurring, owing to on-going habitat loss and degradation across the species's range.


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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
China (mainland) Yulong Xueshan Nature Reserve
China (mainland) Cang Shan Er Hai Nature Reserve
China (mainland) Wuliangshan
China (mainland) Xishuangbanna
Thailand Doi Chiang Dao
Thailand Om Koi
Thailand Mae Fang
Thailand Mae Lao - Mae Sae
China (mainland) Konglonghe Nature Reserve
China (mainland) Baiposhan Nature Reserve
China (mainland) Fangshan Nature Reserve
China (mainland) Longpeng Forest Farm
China (mainland) Nabanhe Nature Reserve
China (mainland) Tuoda Nature Reserve
China (mainland) Weiyuanjiang Nature Reserve
China (mainland) Yunlong Tianchi Nature Reserve
China (mainland) Zhangmuqing Nature Reserve
China (mainland) Zixishan Nature Reserve
China (mainland) Tongbiguan
China (mainland) Dapingzi
China (mainland) Gaoligong Shan Nature Reserve
China (mainland) Habaxueshan Nature Reserve
China (mainland) Jinguangsi Nature Reserve
China (mainland) Jinsichang
China (mainland) Jizu Shan Nature Reserve
China (mainland) Lashi Hai
China (mainland) Luguhu Nature Reserve (Sichuan)
China (mainland) Weibaoshan Nature Reserve
China (mainland) Xueshanheshuiyuanhanya Nature Reserve
China (mainland) Yongguosi Nature Reserve

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry suitable resident
Forest Subtropical/Tropical Moist Montane major resident
Altitude 1000 - 2500 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Shifting agriculture Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Species mortality
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation
Climate change & severe weather Droughts Timing Scope Severity Impact
Ongoing Majority (50-90%) Negligible declines Low Impact: 5
Stresses
Reduced reproductive success
Natural system modifications Fire & fire suppression - Increase in fire frequency/intensity Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation

Recommended citation
BirdLife International (2020) Species factsheet: Sitta magna. Downloaded from http://www.birdlife.org on 15/08/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 15/08/2020.