A remote island and the surrounding rocky islets in the northern Aegean Sea. The dominant vegetation is phrygana.
An important site for breeding seabirds, raptors and for passage migrants. Species of global conservation concern that do not meet IBA criteria: Falco naumanni (passage).
BirdLife International (2020) Important Bird Areas factsheet: Agios Efstratios island. Downloaded from http://www.birdlife.org on 13/08/2020.