Cory's shearwater
Syrna (; anciently, Syrnos () or Sirna or Agios Ioannis, is a small island about 4 km2 in area to the south-east of Astypalaia in the Dodecanese group of Greek islands, situated to the south-east of the country. It is mostly covered with juniper and garrigue scrub. The few inhabitants raise stock, catch fish and practice arable agriculture. The island is important for migrant and breeding seabirds and raptors, including Cory's shearwater, yelkouan shearwater and Eleonora's falcon.