LC
Grey-headed Sunbird Deleornis axillaris



Taxonomy

Taxonomic note
Deleornis fraseri and D. axillaris (del Hoyo and Collar 2016) were previously lumped and placed in the genus Anthreptes as A. fraseri following Dowsett & Forbes-Watson (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 -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 2,060,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing - suspected -
Generation length 5.7 years - - -

Population justification: The global population size has not been quantified.

Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Burundi extant native yes
Congo extant native yes
Congo, The Democratic Republic of the extant native yes
Rwanda extant native yes
Tanzania extant native yes
Uganda extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Congo, The Democratic Republic of the Salonga National Park
Congo, The Democratic Republic of the Lomako - Yekokora
Congo, The Democratic Republic of the Mount Hoyo Reserve
Congo, The Democratic Republic of the Okapi Faunal Reserve
Congo, The Democratic Republic of the Virunga National Park
Congo, The Democratic Republic of the Maiko National Park
Congo, The Democratic Republic of the Forests west of Lake Edward
Congo, The Democratic Republic of the Kahuzi-Biega National Park
Congo, The Democratic Republic of the Itombwe Mountains
Tanzania Minziro Forest Reserve
Uganda Bwindi Impenetrable National Park
Uganda Kibale National Park
Uganda Queen Elizabeth National Park and Lake George
Uganda Semliki National Park
Uganda Mabira Forest Reserve
Uganda Budongo Forest Reserve

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 700 - 1550 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2024) Species factsheet: Deleornis axillaris. Downloaded from https://datazone.birdlife.org/species/factsheet/grey-headed-sunbird-deleornis-axillaris 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.