LC
Yellow Tit Machlolophus holsti



Taxonomy

Taxonomic note
Machlolophus holsti (del Hoyo and Collar 2016) was previously listed as Parus holsti.

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
2023 Least Concern
2016 Near Threatened C1+2a(i)
2012 Near Threatened C1+2a(i)
2008 Near Threatened C1; C2a(i)
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Threatened
Species attributes

Migratory status not a migrant Forest dependency high
Land-mass type shelf island
Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 16,800 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend stable poor suspected -
Generation length 2.68 years - - -
Number of subpopulations 1 - - -
Percentage of mature individuals in largest subpopulation 100% - - -

Population justification: Brazil (2009) estimated a population size of between c.100 and 10,000 breeding pairs, although the lower bound of this estimate is highly improbable given that there remains 10,000 km2 of forest within its mapped range. eBird (2023) data suggest it is commonly encountered, although Severinghaus (2010) describe it as 'local'. The population size is not quantified here in the absence of robust data, however it is evaluated as unlikely to be especially small.

Trend justification: There are no direct population trend data for this species, although there has been no overall habitat loss in the past 20 years (per Global Forest Watch 2023, based on data from Hansen et al. [2013] and methods disclosed therein). Although it has historically been caught for the bird trade, there is no published evidence this is ongoing or occurring at a scale thought capable of causing a population reduction. In the absence of other threats, the population is suspected to be stable.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Taiwan, China extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Taiwan, China Shei-Pa National Park
Taiwan, China Hapen and Fushan
Taiwan, China Shihmen Reservoir
Taiwan, China North Section of Xueshan Mountain Range, Taoyuan City
Taiwan, China Daxueshan, Xueshankeng, Wushikeng, Taichung City
Taiwan, China Chuyanshan Nature Reserve
Taiwan, China Nengdan, Nantou County
Taiwan, China Ruei-yan, Nantou County
Taiwan, China Dawushan Nature Reserve and Shuang-guei Lake Major Wildlife Habitat
Taiwan, China Upstream Section of Beigang River, Nantou County
Taiwan, China Yushan National Park

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Urban Areas suitable non-breeding
Forest Temperate major resident
Altitude 700 - 2500 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Unknown Minority (<50%) No decline Unknown
Stresses
Species mortality
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Past, Unlikely to Return Minority (<50%) Slow, Significant Declines Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2024) Species factsheet: Machlolophus holsti. Downloaded from https://datazone.birdlife.org/species/factsheet/yellow-tit-machlolophus-holsti on 19/03/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org on 19/03/2024.