Reference

Nicolantonio Agostini, Charles Coleiro, Ferdinando Corbi, Giuseppe Di Lieto, Fabio Pinos, Michele Panuccio (2001/02): Comparative study of the autumn migration of Marsh Harriers (Circus aeruginosus) at three sites of the central Mediterranean – Vogelwarte - Zeitschrift für Vogelkunde – 41_2002: 154 - 158.