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Location Equatorial Guinea, Río Muni
Central coordinates 10o 15.00' East  1o 30.00' North
IBA criteria A1, A2, A3
Area 200,000 ha
Altitude 300 - 1,250m
Year of IBA assessment 2001





Site description This site is entirely covered with primary rainforest over an altitudinal range of 300–1,250 m. At 1,250 m, Monte Alen and Monte Mitra (also within the National Park) are thought to be the highest massifs in mainland Equatorial Guinea, although altitudinal information is incomplete. The park is bordered by the large and fast-flowing Uoro river to the west, while the main road from Niefang to Gabon forms the eastern boundary. There are no natural savannas, although some small areas of exposed rock with low bush occur locally near the summit; one small lake (Lake Atoc) is entirely surrounded by forest.

Key Biodiversity See Box and TableS 2 and 3 for key species. At least 265 species have been recorded from the park. Of special note is the recent discovery of three montane species: Coracina caesia (at 750 m), Dryoscopus angolensis (common above 1,100 m) and Phylloscopus herberti (common above 800 m). Phylloscopus budongoensis also occurs (from 325 m), and this site is the only one known so far in central Africa where these congeneric warblers coexist. P. herberti is also a restricted-range species of the Cameroon mountains EBA (086) (see Table 2); both it and C. caesia are, in addition, restricted to the Afrotropical Highlands biome (A07). Picathartes oreas is widespread and, indeed, its specialized habitat is well represented throughout the park. Other species of interest include Melignomon zenkeri (apparently not uncommon at forest edges), Muscicapa tessmanni and Batis minima (both recorded from open-canopy forest). There is a possible sight record of Apus sladeniae, but identification of this swift is so difficult that confirmation is necessary.

Non-bird biodiversity: Among the primates are Colobus satanas (VU, quite common), as well as Cercocebus torquatus (LR/nt), Mandrillus sphinx (LR/nt), Gorilla gorilla (EN) and Pan troglodytes (EN). There are small numbers of elephant Loxodonta africana (EN). The rare shrew Crocidura grassei (VU) has been collected. The frog Conraura goliath (VU) occurs at the southern limit of its distribution.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Gymnobucco calvus resident  2000  present  A3  Not Recognised 
Trachyphonus purpuratus resident  2000  present  A3  Not Recognised 
Bristle-nosed Barbet Gymnobucco peli resident  2000  present  A3  Least Concern 
Speckled Tinkerbird Pogoniulus scolopaceus resident  2000  present  A3  Least Concern 
Red-rumped Tinkerbird Pogoniulus atroflavus resident  2000  present  A3  Least Concern 
Yellow-throated Tinkerbird Pogoniulus subsulphureus resident  2000  present  A3  Least Concern 
Yellow-spotted Barbet Buccanodon duchaillui resident  2000  present  A3  Least Concern 
Hairy-breasted Barbet Tricholaema hirsuta resident  2000  present  A3  Least Concern 
Black Guineafowl Agelastes niger resident  2000  present  A3  Least Concern 
Plumed Guineafowl Guttera plumifera resident  2000  present  A3  Least Concern 
Forest Francolin Peliperdix lathami resident  2000  present  A3  Least Concern 
Hartlaub's Duck Pteronetta hartlaubii resident  2000  present  A3  Least Concern 
Spot-breasted Ibis Bostrychia rara resident  2000  present  A3  Least Concern 
White-crested Tiger-heron Tigriornis leucolopha resident  2000  present  A3  Least Concern 
Congo Serpent-eagle Dryotriorchis spectabilis resident  2000  present  A3  Least Concern 
Chestnut-flanked Sparrowhawk Accipiter castanilius resident  2000  present  A3  Least Concern 
Long-tailed Hawk Urotriorchis macrourus resident  2000  present  A3  Least Concern 
Cassin's Hawk-eagle Aquila africana resident  2000  present  A3  Least Concern 
White-spotted Flufftail Sarothrura pulchra resident  2000  present  A3  Least Concern 
Nkulengu Rail Himantornis haematopus resident  2000  present  A3  Least Concern 
Afep Pigeon Columba unicincta resident  2000  present  A3  Least Concern 
Western Bronze-naped Pigeon Columba iriditorques resident  2000  present  A3  Least Concern 
Blue-headed Wood-dove Turtur brehmeri resident  2000  present  A3  Least Concern 
Black-collared Lovebird Agapornis swindernianus resident  2000  present  A3  Least Concern 
Psittacus erithacus resident  2000  present  A3  Not Recognised 
Green Turaco Tauraco persa resident  2000  present  A3  Least Concern 
Yellow-billed Turaco Tauraco macrorhynchus resident  2000  present  A3  Least Concern 
Dusky Long-tailed Cuckoo Cercococcyx mechowi resident  2000  present  A3  Least Concern 
Olive Long-tailed Cuckoo Cercococcyx olivinus resident  2000  present  A3  Least Concern 
Yellow-throated Cuckoo Chrysococcyx flavigularis resident  2000  present  A3  Least Concern 
Gabon Coucal Centropus anselli resident  2000  present  A3  Least Concern 
Bubo poensis resident  2000  present  A3  Not Recognised 
Red-chested Owlet Glaucidium tephronotum resident  2000  present  A3  Least Concern 
Sjostedt's Owlet Glaucidium sjostedti resident  2000  present  A3  Least Concern 
Sabine's Spinetail Rhaphidura sabini resident  2000  present  A3  Least Concern 
Cassin's Spinetail Neafrapus cassini resident  2000  present  A3  Least Concern 
Bates's Swift Apus batesi resident  2000  present  A3  Least Concern 
Bare-cheeked Trogon Apaloderma aequatoriale resident  2000  present  A3  Least Concern 
Blue-throated Roller Eurystomus gularis resident  2000  present  A3  Least Concern 
Chocolate-backed Kingfisher Halcyon badia resident  2000  present  A3  Least Concern 
African Dwarf-kingfisher Ispidina lecontei resident  2000  present  A3  Least Concern 
White-bellied Kingfisher Corythornis leucogaster resident  2000  present  A3  Least Concern 
Black Bee-eater Merops gularis resident  2000  present  A3  Least Concern 
Merops muelleri resident  2000  present  A3  Not Recognised 
Rosy Bee-eater Merops malimbicus breeding  2000  unknown  A3  Least Concern 
Bycanistes fistulator resident  2000  present  A3  Not Recognised 
Tropicranus albocristatus resident  2000  present  A3  Not Recognised 
Tockus fasciatus resident  2000  present  A3  Not Recognised 
Tockus hartlaubi resident  2000  present  A3  Not Recognised 
Dwarf Hornbill Lophoceros camurus resident  2000  present  A3  Least Concern 
Grey-cheeked Hornbill Bycanistes subcylindricus resident  2000  present  A3  Least Concern 
White-thighed Hornbill Bycanistes albotibialis resident  2000  present  A3  Least Concern 
Black-casqued Hornbill Ceratogymna atrata resident  2000  present  A3  Least Concern 
Zenker's Honeyguide Melignomon zenkeri resident  2000  present  A3  Least Concern 
Spotted Honeyguide Indicator maculatus resident  2000  present  A3  Least Concern 
Willcocks's Honeyguide Indicator willcocksi resident  2000  present  A3  Least Concern 
Dendropicos gabonensis resident  2000  present  A3  Not Recognised 
African Piculet Verreauxia africana resident  2000  present  A3  Least Concern 
Buff-spotted Woodpecker Campethera nivosa resident  2000  present  A3  Least Concern 
Brown-eared Woodpecker Campethera caroli resident  2000  present  A3  Least Concern 
Grey-headed Broadbill Smithornis sharpei resident  2000  present  A3  Least Concern 
Rufous-sided Broadbill Smithornis rufolateralis resident  2000  present  A3  Least Concern 
African Shrike-flycatcher Megabyas flammulatus resident  2000  present  A3  Least Concern 
Gabon Batis Batis minima resident  2000  present  A1, A2, A3  Near Threatened 
West African Batis Batis occulta resident  2000  present  A3  Least Concern 
Chestnut Wattle-eye Platysteira castanea resident  2000  present  A3  Least Concern 
White-spotted Wattle-eye Platysteira tonsa resident  2000  present  A3  Least Concern 
Black-necked Wattle-eye Platysteira chalybea resident  2000  present  A3  Least Concern 
Chestnut-bellied Helmet-shrike Prionops caniceps resident  2000  present  A3  Least Concern 
Grey-green Bush-shrike Telophorus bocagei resident  2000  present  A3  Least Concern 
Fiery-breasted Bush-shrike Malaconotus cruentus resident  2000  present  A3  Least Concern 
Red-eyed Puffback Dryoscopus senegalensis resident  2000  present  A3  Least Concern 
Large-billed Puffback Dryoscopus sabini resident  2000  present  A3  Least Concern 
Sooty Boubou Laniarius leucorhynchus resident  2000  present  A3  Least Concern 
Blue Cuckooshrike Coracina azurea resident  2000  present  A3  Least Concern 
Western Black-headed Oriole Oriolus brachyrhynchus resident  2000  present  A3  Least Concern 
Black-winged Oriole Oriolus nigripennis resident  2000  present  A3  Least Concern 
Shining Drongo Dicrurus atripennis resident  2000  present  A3  Least Concern 
Black-headed Paradise-flycatcher Terpsiphone rufiventer resident  2000  present  A3  Least Concern 
Blue-headed Crested-flycatcher Trochocercus nitens resident  2000  present  A3  Least Concern 
Dusky Crested-flycatcher Elminia nigromitrata resident  2000  present  A3  Least Concern 
Chestnut-capped Flycatcher Erythrocercus mccallii resident  2000  present  A3  Least Concern 
Grey-necked Picathartes Picathartes oreas resident  2000  present  A1, A2, A3  Vulnerable 
Tit-hylia Pholidornis rushiae resident  2000  present  A3  Least Concern 
Square-tailed Saw-wing Psalidoprocne nitens resident  2000  present  A3  Least Concern 
White-throated Blue Swallow Hirundo nigrita resident  2000  present  A3  Least Concern 
Forest Swallow Hirundo fuliginosa resident  2000  present  A2, A3  Least Concern 
Chattering Cisticola Cisticola anonymus resident  2000  present  A3  Least Concern 
Black-capped Apalis Apalis nigriceps resident  2000  present  A3  Least Concern 
Apalis rufogularis resident  2000  present  A3  Not Recognised 
Yellow-browed Camaroptera Camaroptera superciliaris resident  2000  present  A3  Least Concern 
Olive-green Camaroptera Camaroptera chloronota resident  2000  present  A3  Least Concern 
Grey Greenbul Andropadus gracilis resident  2000  present  A3  Least Concern 
Ansorge's Greenbul Andropadus ansorgei resident  2000  present  A3  Least Concern 
Plain Greenbul Andropadus curvirostris resident  2000  present  A3  Least Concern 
Golden Greenbul Calyptocichla serina resident  2000  present  A3  Least Concern 
Honeyguide Greenbul Baeopogon indicator resident  2000  present  A3  Least Concern 
White-tailed Greenbul Baeopogon clamans resident  2000  present  A3  Least Concern 
Spotted Greenbul Ixonotus guttatus resident  2000  present  A3  Least Concern 
Simple Greenbul Chlorocichla simplex resident  2000  present  A3  Least Concern 
Swamp Greenbul Thescelocichla leucopleura resident  2000  present  A3  Least Concern 
White-throated Greenbul Phyllastrephus albigularis resident  2000  present  A3  Least Concern 
Icterine Greenbul Phyllastrephus icterinus resident  2000  present  A3  Least Concern 
Xavier's Greenbul Phyllastrephus xavieri resident  2000  present  A3  Least Concern 
Common Bristlebill Bleda syndactylus resident  2000  present  A3  Least Concern 
Lesser Bristlebill Bleda notatus resident  2000  present  A3  Least Concern 
Green-backed Bulbul Criniger chloronotus resident  2000  present  A3  Least Concern 
Red-tailed Bulbul Criniger calurus resident  2000  present  A3  Least Concern 
White-bearded Bulbul Criniger ndussumensis resident  2000  present  A3  Least Concern 
Yellow-spotted Nicator Nicator chloris resident  2000  present  A3  Least Concern 
Yellow-throated Nicator Nicator vireo resident  2000  present  A3  Least Concern 
Yellow Longbill Macrosphenus flavicans resident  2000  present  A3  Least Concern 
Grey Longbill Macrosphenus concolor resident  2000  present  A3  Least Concern 
Violet-backed Hyliota Hyliota violacea resident  2000  present  A3  Least Concern 
Green Hylia Hylia prasina resident  2000  present  A3  Least Concern 
Uganda Woodland-warbler Phylloscopus budongoensis resident  2000  present  A3  Least Concern 
Rufous-crowned Eremomela Eremomela badiceps resident  2000  present  A3  Least Concern 
Green Crombec Sylvietta virens resident  2000  present  A3  Least Concern 
Lemon-bellied Crombec Sylvietta denti resident  2000  present  A3  Least Concern 
Blackcap Illadopsis Illadopsis cleaveri resident  2000  present  A3  Least Concern 
Brown Illadopsis Illadopsis fulvescens resident  2000  present  A3  Least Concern 
Purple-headed Glossy-starling Lamprotornis purpureiceps resident  2000  present  A3  Least Concern 
Chestnut-winged Starling Onychognathus fulgidus resident  2000  present  A3  Least Concern 
Narrow-tailed Starling Poeoptera lugubris resident  2000  present  A3  Least Concern 
White-tailed Ant-thrush Neocossyphus poensis resident  2000  present  A3  Least Concern 
Rufous Flycatcher-thrush Stizorhina fraseri resident  2000  present  A3  Least Concern 
Black-eared Ground-thrush Zoothera camaronensis resident  2000  present  A3  Least Concern 
Alethe diademata resident  2000  present  A3  Not Recognised 
Forest Robin Stiphrornis erythrothorax resident  2000  present  A3  Least Concern 
Lowland Akalat Sheppardia cyornithopsis resident  2000  present  A3  Least Concern 
African Forest Flycatcher Fraseria ocreata resident  2000  present  A3  Least Concern 
White-browed Forest Flycatcher Fraseria cinerascens resident  2000  present  A3  Least Concern 
Sooty Flycatcher Muscicapa infuscata resident  2000  present  A3  Least Concern 
Olivaceous Flycatcher Muscicapa olivascens resident  2000  present  A3  Least Concern 
Yellow-footed Flycatcher Muscicapa sethsmithi resident  2000  present  A3  Least Concern 
Tessmann's Flycatcher Muscicapa tessmanni resident  2000  present  A3  Data Deficient 
Cassin's Grey Flycatcher Muscicapa cassini resident  2000  present  A3  Least Concern 
Grey-throated Tit-flycatcher Myioparus griseigularis resident  2000  present  A3  Least Concern 
Scarlet-tufted Sunbird Anthreptes fraseri resident  2000  present  A3  Least Concern 
Green Sunbird Anthreptes rectirostris resident  2000  present  A3  Least Concern 
Little Green Sunbird Nectarinia seimundi resident  2000  present  A3  Least Concern 
Bates's Sunbird Nectarinia batesi resident  2000  present  A3  Least Concern 
Blue-throated Brown Sunbird Nectarinia cyanolaema resident  2000  present  A3  Least Concern 
Green-throated Sunbird Nectarinia rubescens resident  2000  present  A3  Least Concern 
Tiny Sunbird Nectarinia minulla resident  2000  present  A3  Least Concern 
Johanna's Sunbird Nectarinia johannae resident  2000  present  A3  Least Concern 
Superb Sunbird Nectarinia superba resident  2000  present  A3  Least Concern 
Orange Weaver Ploceus aurantius resident  2000  present  A3  Least Concern 
Vieillot's Black Weaver Ploceus nigerrimus resident  2000  present  A3  Least Concern 
Yellow-mantled Weaver Ploceus tricolor resident  2000  present  A3  Least Concern 
Maxwell's Black Weaver Ploceus albinucha resident  2000  present  A3  Least Concern 
Preuss's Weaver Ploceus preussi resident  2000  present  A3  Least Concern 
Red-crowned Malimbe Malimbus coronatus resident  2000  present  A3  Least Concern 
Black-throated Malimbe Malimbus cassini resident  2000  present  A3  Least Concern 
Rachel's Malimbe Malimbus racheliae resident  2000  present  A2, A3  Least Concern 
Red-bellied Malimbe Malimbus erythrogaster resident  2000  present  A3  Least Concern 
Gray's Malimbe Malimbus nitens resident  2000  present  A3  Least Concern 
Crested Malimbe Malimbus malimbicus resident  2000  present  A3  Least Concern 
Red-headed Malimbe Malimbus rubricollis resident  2000  present  A3  Least Concern 
Woodhouse's Antpecker Parmoptila woodhousei resident  2000  present  A3  Least Concern 
White-breasted Negrofinch Nigrita fusconotus resident  2000  present  A3  Least Concern 
Chestnut-breasted Negrofinch Nigrita bicolor resident  2000  present  A3  Least Concern 
Pale-fronted Negrofinch Nigrita luteifrons resident  2000  present  A3  Least Concern 
Western Bluebill Spermophaga haematina resident  2000  present  A3  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Monte Alén National Park 200,000 is identical to site 200,000  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Artificial - terrestrial   1%
Unknown   2%
Grassland   1%
Forest   95%

Land use

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

References De la Riva (1994), Dowsett-Lemaire and Dowsett (1999), Larison et al. (1999), Lasso (1995), Lasso et al. (1996).

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Monte Alen National Park. Downloaded from http://www.birdlife.org on 23/11/2014

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