email a friend
printable version
Location Nigeria, Cross River
Central coordinates 8o 35.00' East  5o 25.00' North
IBA criteria A1, A2, A3
Area 280,000 ha
Altitude 100 - 1,000m
Year of IBA assessment 2001

Nigerian Conservation Foundation



Site description Cross River National Park (CRNP) is a large area of lowland and submontane rainforest situated in south-east Nigeria along the border with Cameroon. The park is divided into two sections. The smaller area to the north-east, Okwangwo Division (NG010), is separated by about 50 km of disturbed forest from the larger Oban Division. Oban Division is contiguous with Korup National Park in Cameroon (CM019). The Cross river and its tributaries drain northern parts of Oban Division, while southern parts are drained by the Calabar, Kwa and Korup rivers. The terrain is rough and elevation rises from the river valleys to over 1,000 m in mountainous areas. Soils are ferralitic and sandy, and steadily become shallower with increasing elevation. Leaching and erosion are intense in exposed sites. The vegetation is lowland rainforest and characteristic tree species include Berlinia confusa, Coula edulis, Hannoa klaineana, Klainedoxa gabonensis, Khaya ivorensis and Lophira alata. In the less accessible areas the forest has had little interference, but elsewhere the vegetation has been much influenced by human activity. Exploitation has resulted in secondary regrowth and the establishment of plantations of oil-palm and rubber. The area has a rainy season of at least nine months (March–November) and receives over 3,500 mm annually.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Black Guineafowl Agelastes niger resident  1999  present  A3  Least Concern 
Forest Francolin Francolinus lathami resident  1999  present  A3  Least Concern 
Spot-breasted Ibis Bostrychia rara resident  1999  present  A3  Least Concern 
White-crested Tiger-heron Tigriornis leucolopha resident  1999  present  A3  Least Concern 
Chestnut-flanked Sparrowhawk Accipiter castanilius resident  1999  present  A3  Least Concern 
Long-tailed Hawk Urotriorchis macrourus resident  1999  present  A3  Least Concern 
Cassin's Hawk-eagle Aquila africanus resident  1999  present  A3  Least Concern 
White-spotted Flufftail Sarothrura pulchra resident  1999  present  A3  Least Concern 
Nkulengu Rail Himantornis haematopus resident  1999  present  A3  Least Concern 
Grey-throated Rail Canirallus oculeus resident  1999  present  A3  Least Concern 
Afep Pigeon Columba unicincta 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 
Guinea Turaco Tauraco persa resident  1999  present  A3  Least Concern 
Yellow-billed Turaco Tauraco macrorhynchus resident  1999  present  A3  Least Concern 
Dusky Long-tailed Cuckoo Cercococcyx mechowi resident  1999  present  A3  Least Concern 
Olive Long-tailed Cuckoo Cercococcyx olivinus resident  1999  present  A3  Least Concern 
Black-throated Coucal Centropus leucogaster resident  1999  present  A3  Least Concern 
Fraser's Eagle-owl Bubo poensis resident  1999  present  A3  Least Concern 
Sjostedt's Owlet Glaucidium sjostedti resident  1999  present  A3  Least Concern 
Sabine's Spinetail Rhaphidura sabini resident  1999  present  A3  Least Concern 
Cassin's Spinetail Neafrapus cassini resident  1999  present  A3  Least Concern 
Bates's Swift Apus batesi resident  1999  present  A3  Least Concern 
Bare-cheeked Trogon Apaloderma aequatoriale resident  1999  present  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 Ceyx lecontei resident  1999  present  A3  Least Concern 
White-bellied Kingfisher Alcedo leucogaster resident  1999  present  A3  Least Concern 
Black Bee-eater Merops gularis resident  1999  present  A3  Least Concern 
Merops muelleri resident  1999  present  A3  Not Recognised 
Rosy Bee-eater Merops malimbicus breeding  1999  unknown  A3  Least Concern 
Black Dwarf Hornbill Tockus hartlaubi resident  1999  present  A3  Least Concern 
Red-billed Dwarf Hornbill Tockus camurus resident  1999  present  A3  Least Concern 
African Pied Hornbill Tockus fasciatus resident  1999  present  A3  Least Concern 
White-crested Hornbill Tropicranus albocristatus resident  1999  present  A3  Least Concern 
Piping Hornbill Bycanistes fistulator resident  1999  present  A3  Least Concern 
Black-and-white-casqued 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 
Naked-faced Barbet Gymnobucco calvus resident  1999  present  A3  Least Concern 
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 
Yellow-billed Barbet Trachyphonus purpuratus resident  1999  present  A3  Least Concern 
Cassin's Honeyguide Prodotiscus insignis resident  1999  present  A3  Least Concern 
Willcocks's Honeyguide Indicator willcocksi resident  1999  present  A3  Least Concern 
Lyre-tailed Honeyguide Melichneutes robustus resident  1999  present  A3  Least Concern 
Buff-spotted Woodpecker Campethera nivosa resident  1999  present  A3  Least Concern 
Brown-eared Woodpecker Campethera caroli resident  1999  present  A3  Least Concern 
Gabon Woodpecker Dendropicos gabonensis resident  1999  present  A3  Least Concern 
Fire-bellied Woodpecker Thripias pyrrhogaster resident  1999  present  A3  Least Concern 
Golden-crowned Woodpecker Thripias xantholophus resident  1999  present  A3  Least Concern 
Rufous-sided Broadbill Smithornis rufolateralis 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 
White-spotted Wattle-eye Platysteira tonsa resident  1999  present  A3  Least Concern 
Chestnut-bellied Helmet-shrike Prionops caniceps resident  1999  present  A3  Least Concern 
Large-billed Puffback Dryoscopus sabini resident  1999  present  A3  Least Concern 
Sooty Boubou Laniarius leucorhynchus resident  1999  present  A3  Least Concern 
Blue Cuckooshrike Coracina azurea resident  1999  present  A3  Least Concern 
Eastern Wattled Cuckooshrike Campephaga oriolina resident  1999  present  A3  Data Deficient 
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 
Black-headed Paradise-flycatcher Terpsiphone rufiventer resident  1999  present  A3  Least Concern 
Blue-headed Crested-flycatcher Trochocercus nitens resident  1999  present  A3  Least Concern 
Dusky Crested-flycatcher Elminia nigromitrata resident  1999  present  A3  Least Concern 
Chestnut-capped Flycatcher Erythrocercus mccallii resident  1999  present  A3  Least Concern 
Grey-necked Picathartes Picathartes oreas resident  1999  present  A1, A2, A3  Vulnerable 
Square-tailed Saw-wing Psalidoprocne nitens resident  1999  present  A3  Least Concern 
Fanti Saw-wing Psalidoprocne obscura resident  1999  present  A3  Least Concern 
White-throated Blue Swallow Hirundo nigrita resident  1999  present  A3  Least Concern 
Forest Swallow Hirundo fuliginosa resident  1999  present  A2, A3  Least Concern 
Chattering Cisticola Cisticola anonymus resident  1999  present  A3  Least Concern 
Apalis rufogularis resident  1999  present  A3  Not Recognised 
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 
Ansorge's Greenbul Andropadus ansorgei resident  1999  present  A3  Least Concern 
Plain Greenbul Andropadus curvirostris resident  1999  present  A3  Least Concern 
Golden Greenbul Calyptocichla serina resident  1999  present  A3  Least Concern 
Honeyguide Greenbul Baeopogon indicator resident  1999  present  A3  Least Concern 
White-tailed Greenbul Baeopogon clamans resident  1999  present  A3  Least Concern 
Spotted Greenbul Ixonotus guttatus resident  1999  present  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 
White-throated Greenbul Phyllastrephus albigularis resident  1999  present  A3  Least Concern 
Icterine Greenbul Phyllastrephus icterinus resident  1999  present  A3  Least Concern 
Xavier's Greenbul Phyllastrephus xavieri resident  1999  present  A3  Least Concern 
Common Bristlebill Bleda syndactylus resident  1999  present  A3  Least Concern 
Lesser Bristlebill Bleda notatus resident  1999  present  A3  Least Concern 
Grey-headed Bristlebill Bleda canicapillus resident  1999  present  A3  Least Concern 
Green-backed Bulbul Criniger chloronotus 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 
Yellow Longbill Macrosphenus flavicans resident  1999  present  A3  Least Concern 
Grey Longbill Macrosphenus concolor resident  1999  present  A3  Least Concern 
Green Hylia Hylia prasina resident  1999  present  A3  Least Concern 
Green Crombec Sylvietta virens resident  1999  present  A3  Least Concern 
Lemon-bellied Crombec Sylvietta denti resident  1999  present  A3  Least Concern 
Blackcap Illadopsis Illadopsis cleaveri resident  1999  present  A3  Least Concern 
Brown Illadopsis Illadopsis fulvescens resident  1999  present  A3  Least Concern 
Purple-headed Glossy-starling Lamprotornis purpureiceps resident  1999  present  A3  Least Concern 
Chestnut-winged Starling Onychognathus fulgidus resident  1999  present  A3  Least Concern 
Narrow-tailed Starling Poeoptera lugubris resident  1999  present  A3  Least Concern 
White-tailed Ant-thrush Neocossyphus poensis resident  1999  present  A3  Least Concern 
Rufous Flycatcher-thrush Stizorhina fraseri resident  1999  present  A3  Least Concern 
Alethe diademata resident  1999  present  A3  Not Recognised 
Forest Robin Stiphrornis erythrothorax 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 
Olivaceous Flycatcher Muscicapa olivascens resident  1999  present  A3  Least Concern 
Yellow-footed Flycatcher Muscicapa sethsmithi resident  1999  present  A3  Least Concern 
Dusky-blue Flycatcher Muscicapa comitata resident  1999  present  A3  Least Concern 
Cassin's Grey Flycatcher Muscicapa cassini resident  1999  present  A3  Least Concern 
Grey-throated Tit-flycatcher Myioparus griseigularis resident  1999  present  A3  Least Concern 
Scarlet-tufted Sunbird Anthreptes fraseri resident  1999  present  A3  Least Concern 
Mouse-brown Sunbird Anthreptes gabonicus resident  1999  present  A3  Least Concern 
Green Sunbird Anthreptes rectirostris resident  1999  present  A3  Least Concern 
Little Green Sunbird Nectarinia seimundi resident  1999  present  A3  Least Concern 
Bates's Sunbird Nectarinia batesi resident  1999  present  A3  Least Concern 
Blue-throated Brown Sunbird Nectarinia cyanolaema resident  1999  present  A3  Least Concern 
Carmelite Sunbird Nectarinia fuliginosa resident  1999  present  A3  Least Concern 
Green-throated Sunbird Nectarinia rubescens resident  1999  present  A3  Least Concern 
Buff-throated Sunbird Nectarinia adelberti resident  1999  present  A3  Least Concern 
Tiny Sunbird Nectarinia minulla 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 
Rachel's Malimbe Malimbus racheliae resident  1999  present  A2, A3  Least Concern 
Red-vented Malimbe Malimbus scutatus resident  1999  present  A3  Least Concern 
Red-bellied Malimbe Malimbus erythrogaster 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 
Western Bluebill Spermophaga haematina resident  1999  present  A3  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Cross River National Park 800,000 protected area contains site 280,000  
Cross River (Oban Division) National Park 190,600 protected area contained by site 190,600  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Forest   99%

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
forestry -
hunting -
nature conservation and research -
tourism/recreation -
water management -

Other biodiversity Floral diversity in Oban Division is extremely rich. A total of 1,303 flowering plants, 141 lichens and 56 moss species have so far been collected, some of which have restricted distributions, e.g. Biophytum zenkeri. Oban Division also has a rich mammalian fauna, including Loxodonta africana cyclotis (EN), Procolobus preussi (EN), Mandrillus leucophaeus (EN) and Cercopithecus sclateri (EN), a Nigerian endemic.

References Hall (1981), Holland et al. (1989), Manu and Demey (1999), Schmitt (1996, 1999), WWF (1988, 1990a), WWF/NCF (1988), WWF/ODNRI (1989).

Contribute  Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.

Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Cross River National Park: Oban Division. Downloaded from http://www.birdlife.org on 13/07/2014

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