Rassati, G. (2015) “Responsiveness to acoustic stimulation, distribution and habitat preferences of the Grey-headed Woodpecker, Picus canus, and the Three-toed Woodpecker, Picoides tridactylus, in Friuli-Venezia Giulia (North-eastern Italy)”, Rivista Italiana di Ornitologia, 84(1), pp. 41–52. doi: 10.4081/rio.2014.227.