Interactions between red deer and cattle in Graubünden, Switzerland. (A) Encounter of < 50 m between cattle and red deer. (B) Red deer aggregation in relationship with anthropogenic food resources, here the use of hay silage for livestock in winter. Courtesy of Martin Michael.
Casaubon et al. BMC Veterinary Research 2012 8:204 doi:10.1186/1746-6148-8-204