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Gongon — Cape Verde petrels calling at night over the Fogo caldera and the Santo Antão plateaux

A Fea's-type petrel resting on the sea
Cape Verde petrel. Photo: Christoph Moning, CC BY 4.0

Cape Verde petrel / Fea's petrel (Pterodroma feae), local name 'gongon'; Boyd's shearwater and Cape Verde storm-petrel at lower cliffs. Chã das Caldeiras (Fogo), Chã Dura plateau (Santo Antão), Monte Gordo (São Nicolau), Cabo Verde.

Best time: 15 Jan – 15 Mar (January to March). Where: Portela, Chã das Caldeiras (Fogo), Bangaeira, Chã das Caldeiras (Fogo), Parque Natural de Monte Gordo (São Nicolau) (Cabo Verde). Time of day: First call about an hour after sunset, heaviest in the first 2–3 hours of darkness.

Open it in the interactive calendarSunrise and sunset listening times for the day you pick, and the map.

When is the best time?

Peak: 15 Jan – 15 Mar. Mid January to mid March — the winter breeding season; calling still strong in the third week of March

Active from 1 Dec to 30 Apr (December to April) in a typical year.

Time of day

First call about an hour after sunset, heaviest in the first 2–3 hours of darkness; birds still arriving in the small hours and a pre-dawn exodus around 05:00, silent by first light

What will you hear?

Steeply descending moans, one to two seconds long, a third ending in a rising squeak, wing-whistles with Doppler shifts and occasional claps as birds beat along the caldera walls 500 m above you. Up to 20 calls a minute at the best São Nicolau pinnacles. Not loud — but one of the rarest night sounds in the Atlantic, with crickets, distant dogs and the volcano's silence under it.

Binoculars?

No binoculars needed. Pitch dark on a mountain; you will hear, not see. A red head-torch for the path; nothing else.

Where to go

How to go on your own, and what it costs

Fogo: fly to São Filipe, aluguer up to Chã das Caldeiras (about 1.5 h); sleep in Portela or Bangaeira and walk up the rubble slopes behind the villages after dark. São Nicolau: Monte Gordo park from Cachaço/Ribeira Brava, park paths only. Santo Antão: hire a guide in Ribeira Grande for the Chã Dura plateau. All free; guides optional but wise on lava and cliffs at night.

Cost: Free. Aluguer São Filipe–Chã das Caldeiras a few hundred CVE per seat; a local night guide a few thousand CVE (check current prices).

Field-recording notes

The calls are quiet and the birds high: a parabola or a long shotgun pointed at the cliff line from a wind-sheltered rubble pile is the proven set-up (recordings exist from 160 m above the Fogo crater floor). Wind, mist and a generator 2 km away ruined nights on Santo Antão; dogs bark everywhere. Cloudless, moonless nights in Jan–Mar are best. Do not go to the colonies themselves: terrain is lethal in the dark and the birds are Near Threatened and predated by cats — listen from below. Fogo Natural Park: no permit needed to walk at night, but tell your guesthouse and take a local guide for the lava paths. No playback.

Sources

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More: all spectacles in Cabo Verde · wildlife at night · January · February · March