Locust swarms are often the cause of such unexpected appearances. It is therefore a matter of debate as to why several mainland species don't occur on the islands. The reason for this absence is that the islands don't provide enough space and suitable habitats for all bird species. Y. Roussopoulos Rocky coast on Faradonisia islets, Leros. T he open sea is the haunt of the seabirds, like the Levantine Shearwater, which move over great distances following the shoals of fish.
Coastal waters are shallow so fishing is easier here.
A larger number of fish-eaters feed here, including migrants like terns and grebes and breeding species like the Shag. S everal thousand kilometres of rocky coasts offer important feeding areas and safe breeding and resting sites. Many migrant waterbirds like herons rest here and important raptor species breed. D. Bousbouras Phrygana in Spring. D. Bousbouras Bushy areas with scattered junipers in Farmakonisi, Northern Dodecanese.