EX
Oahu Akepa Loxops wolstenholmei



Taxonomy

Taxonomic note

Loxops coccineus, L. ochraceus and L. wolstenholmei (del Hoyo and Collar 2016) were previously lumped as L. coccineus following AOU (1998 & supplements); 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
D D D1

Red List history
Year Category Criteria
2024 Extinct
2016 Extinct
2012 Not Recognised
2008 Not Recognised
2004 Not Recognised
2000 Not Recognised
1994 Not Recognised
1988 Not Recognised
Species attributes

Migratory status not a migrant Forest dependency high
Land-mass type Average mass 10 g
Range

Estimate Data quality
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 0 mature individuals good estimated -
Population trend medium - 2000-2010
Generation length 3.7 years - - -

Population justification: No extant population remains.

Trend justification: Very little is known about this species, it is considered extinct, having been last recorded in 1900 (Hume 2017). 


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
USA extinct native yes

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

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane major resident
Altitude 1500 - 0 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Small-holder farming Timing Scope Severity Impact
Past, Unlikely to Return Whole (>90%) Unknown Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Unspecified species Timing Scope Severity Impact
Past, Unlikely to Return Unknown Unknown Past Impact
Stresses
Ecosystem degradation, Species mortality

Recommended citation
BirdLife International (2025) Species factsheet: Oahu Akepa Loxops wolstenholmei. Downloaded from https://datazone.birdlife.org/species/factsheet/oahu-akepa-loxops-wolstenholmei on 21/01/2025.
Recommended citation for factsheets for more than one species: BirdLife International (2025) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 21/01/2025.