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Shearwater colonies at night, Lastovo archipelago

A Scopoli's shearwater at its nest burrow
Scopoli's shearwater. Photo: 000izquierdoguillem, CC BY-SA 4.0

Scopoli's shearwater (Calonectris diomedea) and Yelkouan shearwater (Puffinus yelkouan); Audouin's gull, shag, Eleonora's falcon in late summer. Lastovo islands, Sušac, Palagruža, Vis and Biševo, Croatia.

Best time: 15 May – 31 Jul (May to July). Where: Lastovo – southern islets (Lastovnjaci) and Sušac, Palagruža, Vis – Komiža and Biševo (Croatia). Time of day: Rafts gather offshore in the last hour before sunset.

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 May – 31 Jul. Mid May to end of July for Scopoli's night chorus at the colonies; Yelkouan earlier (Feb–June); rafts offshore at dusk all summer

Active from 1 Mar to 15 Oct (March to October) in a typical year.

Time of day

Rafts gather offshore in the last hour before sunset; at the colonies nothing until full dark, then arrivals from about 1 h after sunset to 03:00, peaking 23:00–02:00 on moonless nights.

What will you hear?

Scopoli's shearwaters wailing and cackling overhead and from burrows — the 'crying baby' chorus of Mediterranean islets; Yelkouan's higher nasal calls; waves on rock, cicadas fading at dusk.

Binoculars?

Binoculars helpful. Night chorus is ears only; binoculars for the evening rafts off the Komiža and Lastovo headlands.

Where to go

How to go on your own, and what it costs

Landing on the colony islets needs the nature park's permission and BIOM's coordination; the clean option is a hired boat moored below the cliffs on a moonless night (Lastovo or Komiža skippers). Free from land: dusk rafts off the Komiža headlands on Vis and the Lastovo south coast. Palagruža: boat from Komiža.

Cost: Boat hire (check current prices); Lastovo park vessel ticket from €8 per day off-season / €16 summer for boats under 7 m (2026); headlands free.

Free or no-guide alternative: Komiža headlands at dusk: Scopoli's and Yelkouan rafts gather offshore before flying to Biševo — free from the coast road and paths.

Field-recording notes

Colonies are in the nature park and Natura 2000 sites; BIOM runs rat-eradication and monitoring — contact them and the park before any landing, and never walk over burrow ground with a torch. Recording from a moored boat below the cliffs on a moonless, windless night is the cleanest option (mistral stops at dusk). The shearwater chorus is loudest on dark nights and drops on full moon. Palagruža is far offshore and weather-locked; allow spare days. Fishing boat traffic from Komiža is the main noise at night.

Sources

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