This book, the second in Chapman & Hall's Wildlife, Ecology and Behaviour Series, focuses on studies of both European and Siberian roe deer to provide an authoritative insight into the taxonomy, ecology, feeding patterns, social behaviour and population dynamics. It uses this information to tackle the fascinating question of what environmental factors underly ranging patterns and trigger migratory behaviour in some populations but not in others, adding new perspectives and depths to our understanding of general issues in behavioural ecology.