LC
Blue-throated Roller Eurystomus gularis



Taxonomy

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

Migratory status not a migrant Forest dependency High
Land mass type Average mass 96 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 6,010,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 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) 5.6 - - -

Population justification: The global population size has not been quantified, but the species is reported to be widespread and locally common (del Hoyo et al. 2001).

Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction (del Hoyo et al. 2001).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Angola N Extant Yes
Benin N Extant Yes
Cameroon N Extant Yes
Central African Republic N Extant Yes
Congo N Extant Yes
Congo, The Democratic Republic of the N Extant Yes
Côte d'Ivoire N Extant Yes
Equatorial Guinea N Extant Yes
Gabon N Extant Yes
Ghana N Extant Yes
Guinea N Extant Yes
Guinea-Bissau V Extant Yes
Liberia N Extant Yes
Mali V Extant Yes
Nigeria N Extant Yes
Sierra Leone N Extant Yes
Togo N Extant Yes
Uganda N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Angola Camabatela
Angola Luachimo River (Chitato)
Angola Maiombe
Benin Lama Forest
Congo, The Democratic Republic of the Luki Forest Reserve
Congo, The Democratic Republic of the Ngiri
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
Central African Republic Ngotto
Central African Republic Dzanga-Ndoki National Park
Congo Nouabalé-Ndoki National Park complex
Congo Odzala National Park complex
Congo Léfini Faunal Reserve
Congo Dimonika Biosphere Reserve
Congo Lower Kouilou basin
Congo Conkouati National Park
Côte d'Ivoire Comoe National Park
Côte d'Ivoire Sangbe Mountain National Park
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 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
Cameroon Mbam Djerem National Park
Cameroon Banyang Mbo Wildlife Sanctuary
Cameroon Santchou Faunal Reserve
Cameroon Korup National Park
Cameroon Bakossi mountains
Cameroon Mont Nlonako
Cameroon Mount Rata and Rumpi Hills Forest Reserve
Cameroon Mount Kupe
Cameroon Yabassi
Cameroon Mount Cameroon and Mokoko-Onge
Cameroon Dja Faunal Reserve
Cameroon Boumba - Bek
Cameroon Campo Ma'an complex
Cameroon Nki
Cameroon Lobéké National Park
Gabon Gamba Protected Areas Complex
Gabon Lopé Faunal Reserve
Gabon Ipassa Strict Nature Reserve
Gabon Minkébé Forest Reserve
Gabon Léconi grasslands
Ghana Ankasa Resource Reserve - Nini-Sushien National Park
Ghana Bia National Park and Resource Reserve
Ghana Boin River Forest Reserve
Ghana Cape Three Points Forest Reserve
Ghana Dadieso 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 Subri River Forest Reserve
Ghana Tano-Ehuro Forest Reserve
Ghana Tano-Nimiri Forest Reserve
Ghana Yoyo River Forest Reserve
Guinea Massif du Ziama
Guinea Diécké
Equatorial Guinea Monte Alen National Park
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 Grebo
Nigeria Gashaka-Gumti National Park
Nigeria Okomu National Park
Nigeria Cross River National Park (Oban Division)
Nigeria Omo Forest Reserve
Nigeria IITA Forest Reserve, Ibadan
Nigeria Kagoro - Nindam Forest Reserves and vicinity
Nigeria Donga river basin forests
Sierra Leone Outamba-Kilimi National Park
Sierra Leone Loma Mountains Non-hunting Forest Reserve
Sierra Leone Western Area Peninsula Forest National Park
Sierra Leone Kambui Hills Forest Reserve
Sierra Leone Gola Forests
Togo Misahöhe 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
Congo Ntokou Pikounda Reserve
Congo Lake Télé Community Reserve
Uganda Kasyoha-Kitomi Forest Reserve
Congo Ogooué Leketi National Park
Ghana Kyabobo (proposed) National Park
Ghana Digya National Park
Uganda Bugoma Central Forest Reserve

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land suitable resident
Artificial/Terrestrial Plantations suitable resident
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Savanna Dry suitable resident
Altitude   Occasional altitudinal limits  

Recommended citation
BirdLife International (2020) Species factsheet: Eurystomus gularis. Downloaded from http://www.birdlife.org on 27/05/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 27/05/2020.