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Location Nigeria, Edo
Central coordinates 5o 28.00' East  6o 25.00' North
IBA criteria A1, A3
Area 12,400 ha
Altitude 25 m
Year of IBA assessment 2001

Nigerian Conservation Foundation



Site description Okomu National Park, previously the Okomu Wildlife Sanctuary, is a forest block set within the 1,082 km² Okomu Forest Reserve, and situated about 60 km north-west of the city of Benin. The vegetation is typical Guinea–Congo lowland rainforest and is characterized by a mosaic of swamp-forest, high forest, secondary forest, and open scrub. Common trees include Ceiba pentandra, Celtis zenkeri, Triplochiton scleroxylon, Antiaris africana, Pycnanthus angolensis and Alstonia congoensis. The soils are sandy loam and acidic. Mean annual rainfall is about 2,100 mm and exposed soils are nutrient-poor as a result of leaching. The reserve’s main drainage is the southerly flowing Osse river, which forms its eastern boundary.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Gymnobucco calvus resident  1999  present  A3  Not Recognised 
Trachyphonus purpuratus resident  1999  present  A3  Not Recognised 
Bristle-nosed Barbet Gymnobucco peli resident  1999  present  A3  Least Concern 
Speckled Tinkerbird Pogoniulus scolopaceus resident  1999  present  A3  Least Concern 
Red-rumped Tinkerbird Pogoniulus atroflavus resident  1999  present  A3  Least Concern 
Yellow-throated Tinkerbird Pogoniulus subsulphureus resident  1999  present  A3  Least Concern 
Yellow-spotted Barbet Buccanodon duchaillui resident  1999  present  A3  Least Concern 
Hairy-breasted Barbet Tricholaema hirsuta resident  1999  present  A3  Least Concern 
Forest Francolin Peliperdix lathami resident  1999  present  A3  Least Concern 
Chestnut-flanked Sparrowhawk Accipiter castanilius resident  1999  unknown  A3  Least Concern 
Long-tailed Hawk Urotriorchis macrourus resident  1999  present  A3  Least Concern 
Cassin's Hawk-eagle Aquila africana resident  1999  present  A3  Least Concern 
White-spotted Flufftail Sarothrura pulchra resident  1999  present  A3  Least Concern 
Blue-headed Wood-dove Turtur brehmeri resident  1999  present  A3  Least Concern 
Psittacus erithacus resident  1999  present  A3  Not Recognised 
Green Turaco Tauraco persa resident  1999  present  A3  Least Concern 
Yellow-throated Cuckoo Chrysococcyx flavigularis resident  1999  present  A3  Least Concern 
Black-throated Coucal Centropus leucogaster resident  1999  present  A3  Least Concern 
Black Spinetail Telacanthura melanopygia resident  1999  present  A3  Least Concern 
Sabine's Spinetail Rhaphidura sabini resident  1999  present  A3  Least Concern 
Cassin's Spinetail Neafrapus cassini resident  1999  unknown  A3  Least Concern 
Bates's Swift Apus batesi resident  1999  unknown  A3  Least Concern 
Blue-throated Roller Eurystomus gularis resident  1999  present  A3  Least Concern 
Chocolate-backed Kingfisher Halcyon badia resident  1999  present  A3  Least Concern 
African Dwarf-kingfisher Ispidina lecontei resident  1999  present  A3  Least Concern 
White-bellied Kingfisher Corythornis leucogaster resident  1999  present  A3  Least Concern 
Merops muelleri resident  1999  present  A3  Not Recognised 
Bycanistes fistulator resident  1999  present  A3  Not Recognised 
Tropicranus albocristatus resident  1999  present  A3  Not Recognised 
Tockus fasciatus resident  1999  present  A3  Not Recognised 
Tockus hartlaubi resident  1999  present  A3  Not Recognised 
Dwarf Hornbill Lophoceros camurus resident  1999  present  A3  Least Concern 
Grey-cheeked Hornbill Bycanistes subcylindricus resident  1999  present  A3  Least Concern 
White-thighed Hornbill Bycanistes albotibialis resident  1999  present  A3  Least Concern 
Black-casqued Hornbill Ceratogymna atrata resident  1999  present  A3  Least Concern 
Yellow-casqued Hornbill Ceratogymna elata resident  1999  present  A1, A3  Vulnerable 
Cassin's Honeybird Prodotiscus insignis resident  1999  present  A3  Least Concern 
Dendropicos gabonensis resident  1999  present  A3  Not Recognised 
Buff-spotted Woodpecker Campethera nivosa resident  1999  present  A3  Least Concern 
Brown-eared Woodpecker Campethera caroli resident  1999  present  A3  Least Concern 
Fire-bellied Woodpecker Dendropicos pyrrhogaster resident  1999  present  A3  Least Concern 
African Shrike-flycatcher Megabyas flammulatus resident  1999  present  A3  Least Concern 
Chestnut Wattle-eye Platysteira castanea resident  1999  present  A3  Least Concern 
Red-eyed Puffback Dryoscopus senegalensis resident  1999  present  A3  Least Concern 
Large-billed Puffback Dryoscopus sabini resident  1999  present  A3  Least Concern 
Blue Cuckooshrike Coracina azurea resident  1999  present  A3  Least Concern 
Western Black-headed Oriole Oriolus brachyrhynchus resident  1999  present  A3  Least Concern 
Black-winged Oriole Oriolus nigripennis resident  1999  present  A3  Least Concern 
Shining Drongo Dicrurus atripennis resident  1999  present  A3  Least Concern 
Blue-headed Crested-flycatcher Trochocercus nitens resident  1999  present  A3  Least Concern 
Chestnut-capped Flycatcher Erythrocercus mccallii resident  1999  unknown  A3  Least Concern 
Yellow-browed Camaroptera Camaroptera superciliaris resident  1999  present  A3  Least Concern 
Olive-green Camaroptera Camaroptera chloronota resident  1999  present  A3  Least Concern 
Grey Greenbul Andropadus gracilis resident  1999  present  A3  Least Concern 
Plain Greenbul Andropadus curvirostris resident  1999  present  A3  Least Concern 
Honeyguide Greenbul Baeopogon indicator resident  1999  present  A3  Least Concern 
Spotted Greenbul Ixonotus guttatus resident  1999  unknown  A3  Least Concern 
Simple Greenbul Chlorocichla simplex resident  1999  present  A3  Least Concern 
Swamp Greenbul Thescelocichla leucopleura resident  1999  present  A3  Least Concern 
Leaf-love Pyrrhurus scandens resident  1999  present  A3  Least Concern 
Icterine Greenbul Phyllastrephus icterinus resident  1999  present  A3  Least Concern 
Common Bristlebill Bleda syndactylus resident  1999  present  A3  Least Concern 
Grey-headed Bristlebill Bleda canicapillus resident  1999  present  A3  Least Concern 
Red-tailed Bulbul Criniger calurus resident  1999  present  A3  Least Concern 
White-bearded Bulbul Criniger ndussumensis resident  1999  present  A3  Least Concern 
Yellow-spotted Nicator Nicator chloris resident  1999  present  A3  Least Concern 
Green Hylia Hylia prasina resident  1999  present  A3  Least Concern 
Rufous-crowned Eremomela Eremomela badiceps resident  1999  present  A3  Least Concern 
Purple-headed Glossy-starling Lamprotornis purpureiceps resident  1999  present  A3  Least Concern 
Narrow-tailed Starling Poeoptera lugubris resident  1999  present  A3  Least Concern 
Alethe diademata resident  1999  present  A3  Not Recognised 
Forest Robin Stiphrornis erythrothorax resident  1999  unknown  A3  Least Concern 
Lowland Akalat Sheppardia cyornithopsis resident  1999  present  A3  Least Concern 
African Forest Flycatcher Fraseria ocreata resident  1999  present  A3  Least Concern 
Sooty Flycatcher Muscicapa infuscata resident  1999  present  A3  Least Concern 
Cassin's Grey Flycatcher Muscicapa cassini resident  1999  present  A3  Least Concern 
Green Sunbird Anthreptes rectirostris resident  1999  present  A3  Least Concern 
Reichenbach's Sunbird Nectarinia reichenbachii resident  1999  present  A3  Least Concern 
Blue-throated Brown Sunbird Nectarinia cyanolaema resident  1999  present  A3  Least Concern 
Buff-throated Sunbird Nectarinia adelberti resident  1999  present  A3  Least Concern 
Superb Sunbird Nectarinia superba resident  1999  present  A3  Least Concern 
Vieillot's Black Weaver Ploceus nigerrimus resident  1999  present  A3  Least Concern 
Yellow-mantled Weaver Ploceus tricolor resident  1999  present  A3  Least Concern 
Maxwell's Black Weaver Ploceus albinucha resident  1999  present  A3  Least Concern 
Red-vented Malimbe Malimbus scutatus resident  1999  present  A3  Least Concern 
Gray's Malimbe Malimbus nitens resident  1999  present  A3  Least Concern 
Crested Malimbe Malimbus malimbicus resident  1999  present  A3  Least Concern 
Red-headed Malimbe Malimbus rubricollis resident  1999  present  A3  Least Concern 
Woodhouse's Antpecker Parmoptila woodhousei resident  1999  present  A3  Least Concern 
White-breasted Negrofinch Nigrita fusconotus resident  1999  present  A3  Least Concern 
Chestnut-breasted Negrofinch Nigrita bicolor resident  1999  present  A3  Least Concern 
Pale-fronted Negrofinch Nigrita luteifrons resident  1999  present  A3  Least Concern 
Western Bluebill Spermophaga haematina resident  1999  present  A3  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Okomu Forest Reserve 18,100 protected area contains site 12,400  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Artificial - terrestrial   11%
Unknown   23%
Shrubland   1%
Forest   63%

Land use

Land-use Extent (% of site)
agriculture -
forestry -
nature conservation and research -
tourism/recreation -

Other biodiversity The mammal fauna is diverse (33 species) and includes Loxodonta africana cyclotis (EN) and Syncerus caffer (LR/cd), while the site is a stronghold for Cercopithecus erythrogaster (VU).

References Coates et al. (1993), Darling (1995), WCMC (1988).

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Okomu National Park. Downloaded from http://www.birdlife.org on 23/08/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife