Straw-coloured fruit bats over Freetown
Straw-coloured fruit bat (Eidolon helvum). Freetown (Cotton Tree area and the city's big trees), Sierra Leone.
Best time: 1 Nov – 28 Feb (November to February). Where: Cotton Tree site, central Freetown, Fourah Bay / Tower Hill big trees (Sierra Leone). Time of day: Dusk emergence in the 30 minutes after sunset.
- You can go on your own
- Free
- No binoculars needed
- Sound 4/5
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 – 28 Feb. Uncertain: the famous Cotton Tree roost of thousands was lost when the tree fell in May 2023 and where the colony now roosts is not documented — ask locally. Eidolon colonies in West Africa are largest in the dry season
Active from 1 Jan to 31 Dec (all year) in a typical year.
Time of day
Dusk emergence in the 30 minutes after sunset; the colony chatters all day
- Emergence: sunset → 30 min after last light
- Return: 1 h before sunrise → sunrise
What will you hear?
The squabbling, squeaking chorus of a straw-coloured fruit bat roost and the wing-rush of the dusk emergence over a city — one of the great urban wildlife sounds of West Africa, if the colony can be found.
Binoculars?
No binoculars needed. Bats pour out over the street at dusk; naked eye.
Where to go
- Cotton Tree site, central Freetown — The historic tree fell in 2023 (part of the trunk survives); the bats roosted here for generations. Ask where they have moved. Map
- Fourah Bay / Tower Hill big trees — Likely alternative roost trees in the old city — unverified. Map
How to go on your own, and what it costs
Walk to the Cotton Tree roundabout at dusk; free. Ask locally where the bats now roost.
Cost: Free (2026).
Field-recording notes
City-centre recording at dusk: traffic, generators, hawkers; the emergence sits above it. Eidolon is a hunted species here — be discreet about pointing at a roost. Bats carry viruses: no handling, no roost visits under the trees at dawn without a mask.
Sources
Similar spectacles
The Plateau fruit bats of Abidjan — a city-centre roost flying out to the Banco forestA shrieking, squabbling wall of sound from the big trees of the Plateau administrative district, wing-slaps and jostling, then the rush of the evening emergence over the avenues and the lagoon bridges. The return at first light is quieter and more musical — thousands of bats settling and arguing over branches above the empty Sunday streets.
Straw-coloured fruit bat roost at 37 Military Hospital, AccraA continuous shrieking, chattering wall of sound from the roost trees over the hospital and the 37 lorry station, wing-slaps and squabbling as bats jostle, then the rushing of the evening emergence over Liberation Road. Pied crows and a few raptors work the edges.
Fruit bat colony on the cliffs of Wli FallsA high, ceaseless chattering from many thousands of bats hanging on the cliff face beside the upper cascade, then the rush of wings as the colony peels off at dusk over the pool, all against the falls.
East Nimba Nature Reserve — the Liberian side of Mount NimbaBat emergences from the disused iron-mine adits below the Nimba ridge (a full-spectrum recorder finds far more than the ear), chimps and hornbills in the remnant forest, and the wind on the grassland summit.
Îles Ehotilé: fruit bats, waterbirds and mangrove lagoonFruit bats chattering on the roost islands and rushing out over the water at dusk, egret colonies bickering as they settle, terns and whimbrel over the flats, and dugout paddles in a mangrove-lined lagoon.
Bat hibernacula in the Mønsted and Daugbjerg limestone minesAudible squeaks and wing-flutter of hundreds of Myotis swarming at the entrances; on a detector, dense FM sweeps and social calls; tawny owls in the beech above; otherwise rural silence.
More: all spectacles in Sierra Leone · bats · Sierra Leone in January · Sierra Leone in February · Sierra Leone in November · Sierra Leone in December