A whole island switched its lights off for five nights so baby seabirds could find the sea

Corvo, the smallest island in Portugal's Azores, went dark from 9pm to 5am for five nights this month — on purpose. Young Cory's shearwaters leave their nests at night for their first flight to the ocean, and streetlights confuse them into crash-landing in the village. The blackout is part of SOS Cagarro, a rescue campaign running since 1995 whose volunteers patrol for fallen fledglings and release them safely; about 6,000 young birds have been rescued on Corvo alone since 2015, and more than 30,000 across the Azores. About 75% of the world's Cory's shearwaters nest in the islands.

SDG 15 · Life on land — Mechanism: behaviour campaign