Waterbirds of Lake Nokoué and Ganvié

Black tern (thousands in winter), whiskered and white-winged terns, herons, egrets, African jacana, pygmy goose, white-faced whistling duck, Palearctic waders. Lac Nokoué, Sô-Ava & Cotonou, Benin.
Best time: 1 Nov – 15 Feb (November to February). Where: Ganvié – stilt village and the acadja fish-parks, Sô-Ava waterbird sanctuary – mangroves north of Ganvié, Porto-Novo lagoon (Benin). Time of day: Pirogue from the first light until about 09:00 before the wind and the tourist boats.
- Partly on your own
- Low cost
- Binoculars helpful
- Sound 3/5
Open it in the interactive calendarSunrise and sunset listening times for the day you pick, and the map.
When is the best time?
Peak: 1 Nov – 15 Feb. November to mid February, the wintering season of the Palearctic terns
Active from 1 Oct to 31 Mar (October to March) in a typical year.
Time of day
Pirogue from the first light until about 09:00 before the wind and the tourist boats; tern and heron roosts on the acadja fish-parks and the mangrove islets from an hour before sunset
- Morning pirogue: first light → 09:00
- Roosts: 1 h before sunset → last light
What will you hear?
Black terns and whiskered terns calling over the fish-parks, egrets and herons settling at dusk, jacanas on the lily beds and the paddle-and-pole sounds of a stilt town of 30,000 people.
Binoculars?
Binoculars helpful. Terns hawk over the fish-parks beside the pirogue; binoculars for the roost islets, which are kept at a distance.
Where to go
- Ganvié – stilt village and the acadja fish-parks — Boats from Abomey-Calavi; the tourist circuit is 09:00–16:00 so go early with a private pirogue. Map
- Sô-Ava waterbird sanctuary – mangroves north of Ganvié — Municipal protection decree for mangroves and roosting waterbirds; local eco-guides. Map
- Porto-Novo lagoon — Eastern part of the Ramsar site; quieter, fewer boats. Map
How to go on your own, and what it costs
Hire a pirogue at the Abomey-Calavi embarcadère (public; agree the price before leaving) and ask for the fish-parks north of Ganvié at first light; no guide or permit needed, but the roost islets are community-protected, so keep off them.
Cost: Pirogue hire per trip, negotiable; the Ganvié tourist boat has a fixed tariff; check current prices.
Free or no-guide alternative: The lagoon shore at Abomey-Calavi and the Cotonou lagoon bridges give terns and herons for free, without a boat.
Field-recording notes
Ramsar site (Basse vallée de l'Ouémé, lagune de Porto-Novo, lac Nokoué) surrounded by a city: outboard traffic, Cotonou's generators and the road bridge. The mangrove islets and the northern fish-parks at first light are the quiet corner. Roost islets are community-protected; approach with the guide only. The ecotourism office in Ganvié arranges early pirogues.
Sources
Similar spectacles
Wadden Sea autumn: geese, waders and whooper swans in the marshBarnacle goose yapping in flocks of tens of thousands over the Ballum marsh, brent geese growling on the flats, golden plover flocks whistling, whooper swan families bugling on the polders at night, curlew; the tide.
Pink-footed goose dawn flightsTens of thousands of geese lifting off the mudflats at first light in a wall of 'wink-wink' calls, wave after wave overhead.
Whooper swans & barnacle geeseBugling whoopers and yapping barnacle flocks like a huge crowd; the whole Svalbard barnacle population is on one estuary.
Arctic geese on the Lower RhineWhite-fronted geese's high yelping in skeins of thousands, bean geese's deeper 'kayak', the roar of a roost lifting off the Rhine at first light, whooper swans on the Bislicher Altrhein; barges and the A57 underneath.
Lower Oder Valley: whooper swans, geese and the flooded poldersWhooper swan bugling in chorus over the polder ice-edge, geese lifting at dawn by the thousand, smew and goldeneye wing-whistle, eagle yelps; in October, cranes; in May, corncrakes at night.
Wintering cranes at ArjuzanxWaves of cranes dropping into the flooded roost after dark, a continuous rolling chorus that carries for kilometres over the pine plantations.
More: all spectacles in Benin · winter geese, swans and ducks · Benin in January · Benin in February · Benin in November · Benin in December