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The site was identified as important in 2001 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Hartlaub's Duck Pteronetta hartlaubii	LC	resident	1999	present	A1, A3
Western Bronze-naped Pigeon Columba iriditorques	LC	resident	1999	present	A3
Blue-headed Wood-dove Turtur brehmeri	LC	resident	1999	present	A3
Cassin's Spinetail Neafrapus cassini	LC	resident	1999	present	A3
Gabon Coucal Centropus anselli	LC	resident	1999	present	A3
Grey-throated Rail Canirallus oculeus	LC	resident	1999	present	A3
Green Turaco Tauraco persa	LC	resident	1999	present	A3
Yellow-billed Turaco Tauraco macrorhynchus	LC	resident	1999	present	A3
White-crested Tiger-heron Tigriornis leucolopha	LC	resident	1999	present	A3
African Skimmer Rynchops flavirostris	LC	non-breeding	-	116 individuals	A1, A4i
Damara Tern Sternula balaenarum	LC	non-breeding	-	430 individuals	A1, A4i
Royal Tern Thalasseus maximus	LC	non-breeding	-	1,632 individuals	A4i
Eastern Long-tailed Hornbill Horizocerus cassini	LC	resident	1999	present	A3
Red-billed Dwarf Hornbill Lophoceros camurus	LC	resident	1999	present	A3
Congo Pied Hornbill Lophoceros fasciatus	LC	resident	1999	present	A3
Black-casqued Hornbill Ceratogymna atrata	LC	resident	1999	present	A3
Eastern Piping Hornbill Bycanistes sharpii	LC	resident	1999	present	A3
Black-headed Bee-eater Merops breweri	LC	resident	1999	present	A3
Rosy Bee-eater Merops malimbicus	LC	breeding	1999	present	A3
Black Bee-eater Merops gularis	LC	resident	1999	present	A3
Eastern Yellow-spotted Barbet Buccanodon duchaillui	LC	resident	1999	present	A3
Speckled Tinkerbird Pogoniulus scolopaceus	LC	resident	1999	present	A3
Yellow-throated Tinkerbird Pogoniulus subsulphureus	LC	resident	1999	present	A3
Hairy-breasted Barbet Tricholaema hirsuta	LC	resident	1999	present	A3
Gabon Woodpecker Dendropicos gabonensis	LC	resident	1999	present	A3
Brown-eared Woodpecker Pardipicus caroli	LC	resident	1999	present	A3
Yellow-crested Woodpecker Dendropicos xantholophus	LC	resident	1999	present	A3
Grey Parrot Psittacus erithacus	EN	resident	1999	present	A3
Chestnut Wattle-eye Dyaphorophyia castanea	LC	resident	1999	present	A3
Rufous-vented Paradise-flycatcher Terpsiphone rufocinerea	LC	resident	1999	present	A3
Western Nicator Nicator chloris	LC	resident	1999	present	A3
Green Crombec Sylvietta virens	LC	resident	1999	present	A3
Grey Longbill Macrosphenus concolor	LC	resident	1999	present	A3
Rufous-crowned Eremomela Eremomela badiceps	LC	resident	1999	present	A3
Olive-green Camaroptera Camaroptera chloronota	LC	resident	1999	present	A3
Chattering Cisticola Cisticola anonymus	LC	resident	1999	present	A3
African River Martin Pseudochelidon eurystomina	DD	breeding	1999	present	A1, A3
White-bibbed Swallow Hirundo nigrita	LC	resident	1999	present	A3
Yellow-lored Bristlebill Bleda notatus	LC	resident	1999	present	A3
Swamp Palm Bulbul Thescelocichla leucopleura	LC	resident	1999	present	A3
Grey Greenbul Eurillas gracilis	LC	resident	1999	present	A3
Icterine Greenbul Phyllastrephus icterinus	LC	resident	1999	present	A3
Green Hylia Hylia prasina	LC	resident	1999	present	A3
Brown Illadopsis Illadopsis fulvescens	LC	resident	1999	present	A3
Chestnut-winged Starling Onychognathus fulgidus	LC	resident	1999	present	A3
Purple-headed Starling Hylopsar purpureiceps	LC	resident	1999	present	A3
Rufous Flycatcher-thrush Stizorhina fraseri	LC	resident	1999	present	A3
Fire-crested Alethe Alethe castanea	LC	resident	1999	present	A3
White-browed Forest-flycatcher Fraseria cinerascens	LC	resident	1999	present	A3
Mouse-brown Sunbird Anthreptes gabonicus	LC	resident	1999	present	A3
Violet-tailed Sunbird Anthreptes aurantius	LC	resident	1999	present	A3
Little Green Sunbird Anthreptes seimundi	LC	resident	1999	present	A3
Reichenbach's Sunbird Anabathmis reichenbachii	LC	resident	1999	present	A3
Carmelite Sunbird Chalcomitra fuliginosa	LC	resident	1999	present	A3
Green-throated Sunbird Chalcomitra rubescens	LC	resident	1999	present	A3
Johanna's Sunbird Cinnyris johannae	LC	resident	1999	present	A3
Superb Sunbird Cinnyris superbus	LC	resident	1999	present	A3
Loango Weaver Ploceus subpersonatus	VU	resident	1999	present	A1, A2, A3
Vieillot's Black Weaver Ploceus nigerrimus	LC	resident	1999	present	A3
Cassin's Malimbe Malimbus cassini	LC	resident	1999	present	A3
Blue-billed Malimbe Malimbus nitens	LC	resident	1999	present	A3
Western Bluebill Spermophaga haematina	LC	resident	1999	present	A3
Long-legged Pipit Anthus pallidiventris	LC	resident	1999	present	A3

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2001) may differ.

Year	Protected Area	Designation	% overlap with IBA
2017	Parc Marin de l'embouchure d'Ozouri	Parc Marin	2
2017	Parc Marin du Cap Lopez	Parc Marin	<1

Habitat1	Habitat detail	% of IBA
Forest		70
Shrubland		20
Grassland		9

1. IUCN Habitat classification.

Land use	% of IBA
urban/industrial/transport	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Ogooué delta and Mandji island (Gabon). Downloaded from https://datazone.birdlife.org/site/factsheet/ogooué-delta-and-mandji-island-iba-gabon on 22/11/2024.