LC
White-tailed Alethe Alethe diademata



Taxonomy

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.
Sibley, C.G.; Monroe, B.L. 1993. A supplement to '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
- - -

Red List history
Year Category Criteria
2018 Least Concern
2016 Least Concern
2013 Least Concern
2012 Least Concern
2008 Not Recognised
2004 Not Recognised
2000 Not Recognised
1994 Not Recognised
1988 Lower Risk/Least Concern
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 782,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 0
Population trend Decreasing suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 6.5 - - -

Population justification: The global population size has not been quantified, but the species is described as locally common (del Hoyo et al. 2005).

Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction and predation by introduced species.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Côte d'Ivoire N Extant Yes
Ghana N Extant Yes
Guinea N Extant Yes
Guinea-Bissau N Extant Yes
Liberia N Extant Yes
Senegal N Extant Yes
Sierra Leone N Extant Yes
Togo N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Côte d'Ivoire Comoe National Park
Côte d'Ivoire Sangbe Mountain National Park
Côte d'Ivoire Mount Nimba Strict Nature Reserve
Côte d'Ivoire Gueoule and Glo Mountain Forest Reserves
Côte d'Ivoire Peko Mountain National Park
Côte d'Ivoire Marahoue National Park
Côte d'Ivoire Bossematie Forest Reserve
Côte d'Ivoire Lamto Ecological Research Station
Côte d'Ivoire Mabi Forest reserve
Côte d'Ivoire Parc National de Taï et Réserve de faune du N'Zo
Côte d'Ivoire Mopri Forest Reserve
Côte d'Ivoire Yapo and Mambo Forest Reserves
Côte d'Ivoire Azagny National Park
Ghana Ankasa Resource Reserve - Nini-Sushien National Park
Ghana Atewa Range Forest Reserve
Ghana Bia National Park and Resource Reserve
Ghana Boin Tano Forest Reserve
Ghana Boin River Forest Reserve
Ghana Bosomtwe Range Forest Reserve
Ghana Bura River Forest Reserve
Ghana Cape Three Points Forest Reserve
Ghana Dadieso Forest Reserve
Ghana Draw River Forest Reserve
Ghana Ebi River Shelterbelt Forest Reserve
Ghana Fure River Forest Reserve
Ghana Jema-Asemkrom Forest Reserve
Ghana Kakum National Park - Assin Attandaso Resource Reserve
Ghana Mamiri Forest Reserve
Ghana Nsuensa Forest Reserve
Ghana Pra-Sushien Forest Reserve
Ghana Subri River Forest Reserve
Ghana Tano-Anwia Forest Reserve
Ghana Tano-Ehuro Forest Reserve
Ghana Tano-Nimiri Forest Reserve
Ghana Yoyo River Forest Reserve
Guinea Kounounkan
Guinea Massif du Ziama
Guinea Monts Nimba (part of Mount Nimba transboundary AZE)
Guinea-Bissau Lagoas de Cufada
Liberia Wologizi mountains
Liberia Wonegizi mountains
Liberia Lofa-Gola-Mano Complex
Liberia Nimba mountains
Liberia Zwedru
Liberia Cestos - Senkwen
Liberia Sapo
Liberia Grebo
Sierra Leone Loma Mountains Non-hunting Forest Reserve
Sierra Leone Tingi Hills Non-hunting Forest Reserve
Sierra Leone Kangari Hills Non-hunting Forest Reserve
Sierra Leone Western Area Peninsula Forest National Park
Sierra Leone Kambui Hills Forest Reserve
Sierra Leone Gola Forests
Senegal Parc National de Basse Casamance
Togo Misahöhe Forest Reserve
Ghana Kyabobo (proposed) National Park
Ghana Kalakpa Resource Reserve

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

Recommended citation
BirdLife International (2020) Species factsheet: Alethe diademata. Downloaded from http://www.birdlife.org on 24/09/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 24/09/2020.