LC
Crimson Sunbird Aethopyga siparaja



Taxonomy

Taxonomic note
Aethopyga siparaja, A. magnifica and A. vigorsii (del Hoyo and Collar 2016) were previously lumped as A. siparaja following Sibley & Monroe (1990, 1993).

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
2016 Least Concern
Species attributes

Migratory status not a migrant Forest dependency medium
Land-mass type Average mass 8 g
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 12,500,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend stable - suspected -
Generation length 4.2 years - - -

Population justification: The global population size has not been quantified, but the species is described as usually common although rare to uncommon on Buton island (Cheke et al. 2001).

Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Bangladesh extant native yes
Bhutan extant native yes
Brunei extant native yes
Cambodia extant native yes
China (mainland) extant native yes
India extant native yes
Indonesia extant native yes
Laos extant native yes
Malaysia extant native yes
Myanmar extant native yes
Nepal extant native yes
Philippines extant native yes
Singapore extant native yes
Thailand extant native yes
Vietnam extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Rural Gardens suitable resident
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable resident
Forest Subtropical/Tropical Moist Lowland suitable resident
Forest Subtropical/Tropical Swamp suitable resident
Grassland Subtropical/Tropical Dry suitable resident
Shrubland Subtropical/Tropical Moist suitable resident
Altitude   Occasional altitudinal limits (max) 1800 m

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets/display animals, horticulture - - international non-trivial recent

Recommended citation
BirdLife International (2024) Species factsheet: Aethopyga siparaja. Downloaded from https://datazone.birdlife.org/species/factsheet/crimson-sunbird-aethopyga-siparaja 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.