Home range of male black grouse Tetrao tetrix from summer to winter in the Eastern Alps (Friuli, Italy)
1995
Franceschi, P.F. de (Museo Civico di Storia Naturale, Verona (Italy)) | Mattedi, S.
Movements of four radio-tagged male Black Grouse were followed from summer 1991 to winter 1991-92 at Lanza (Carnic Alps), and at Mount Cuar (Carnic Pre-alps). After display activity ceased in June, the males settled at their summer sites, 2000 and 500 m from the lek at Lanza, and 1850 and 1830 m away at Mount Cuar. Their movements from center of their summer ranges, across the slopes of the study areas, averaged 500 m (adult) and 1500 m (yearling) at Lanza, and 800 m (adults) at Mount Cuar. The home ranges of the three adult males from summer to winter averaged about 51 - 66 ha, being larger in the Prealps then in the Alps. The home range of the yearling was 2.5 to 5 times larger than that of the adults
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