Across north america, you really only run into three main kinds of wild deer, and once you know what to look for, they are surprisingly easy to tell apart.. Deer, any of 43 species of hoofed ruminants in the order artiodactyla, notable for having two large and two small hooves on each foot and also for having antlers in the males of most species.
Deer are primarily herbivorous mammals that constitute cervidae, the second most diverse family of artiodactyls after bovids (family bovidae).. Instead of memorizing a field.