LC
Eastern Yellow-billed Hornbill Tockus flavirostris



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 Low
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 2,740,000 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) 9.8 - - -

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

Trend justification: The population is suspected to be in decline owing to destruction of large trees which provide nesting sites (del Hoyo et al. 2001).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Djibouti N Extant Yes
Eritrea N Extant Yes
Ethiopia N Extant Yes
Kenya N Extant Yes
Somalia N Extant Yes
South Sudan N Extant Yes
Sudan N Extant
Tanzania N Extant Yes
Uganda N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Djibouti Forêt de Day
Djibouti Mabla
Eritrea Massawa coast
Eritrea Ghinda
Eritrea Gulf of Zula
Eritrea Danakil lowlands
Ethiopia Yangudi-Rassa National Park
Ethiopia Awash National Park
Ethiopia Babille Elephant Sanctuary
Ethiopia Abijatta - Shalla Lakes National Park
Ethiopia Omo National Park
Ethiopia Mago National Park
Ethiopia Lower Wabi Shebelle river and Warder
Ethiopia Mankubsa - Welenso forest
Ethiopia Konso - Segen
Ethiopia Yabello Sanctuary
Ethiopia Arero forest
Ethiopia Dawa - Wachile
Ethiopia Lake Chew Bahir
Kenya Lower Tana River Forests
Kenya Tsavo East National Park
Kenya Tsavo West National Park
Kenya Dida Galgalu desert
Kenya Lake Turkana
Kenya Meru National Park
Kenya Samburu and Buffalo Springs National Reserves
Kenya Shaba National Reserve
Kenya Amboseli National Park
Kenya Lake Baringo
Kenya Lake Bogoria National Reserve
Kenya Ol Donyo Sabache
South Sudan Kidepo
Somalia Daalo
Somalia Saylac
Somalia Gacan Libaax
Somalia Lascaanod - Taleex - Ceel Chebet
Somalia War Harqaan - isha Dolondole
Somalia Xawaadley reservoir
Somalia Aangole - Farbiito
Somalia Far Waamo
Somalia Laag Badaana
Tanzania Mkomazi Game Reserve
Uganda Mount Moroto Forest Reserve
Uganda Kidepo Valley National Park
Ethiopia Eastern Hararghe (Harar-Wabi Shebelle)
Kenya Lolldaiga-Mugogodo-Ewaso N'yiro

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry major resident
Savanna Dry major resident
Shrubland Subtropical/Tropical Dry major resident
Altitude   Occasional altitudinal limits  

Recommended citation
BirdLife International (2020) Species factsheet: Tockus flavirostris. Downloaded from http://www.birdlife.org on 28/05/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 28/05/2020.