Gschweng, Marion; Kalko, Elisabeth Klara Viktoria; Querner, Ulrich; Fiedler, Wolfgang; Berthold, Peter
(2008)
Eleonora's falcon (Falco eleonorae) is a rare raptor species that delays its breeding period until late summer to feed its young with passerines at the peak of autumn migration. Since the 1950s, this slender winged ...