Most farms have an all-natural pest elimination system: barn cats. In addition to their extermination services, farm felines offer a friendly, furry face during chores and perhaps affectionate head butting and leg rubbing if they are not too shy. It is hard to picture a farm without cats. Although barn cats â as all cats â are mostly independent, they, too, appreciate a few extra considerations during winter months to stay comfortable. Your cats may need more to eat during the winter because their bodies burn considerable extra calories warming themselves. Supplement their diet of rodents with dry cat food and any meat scraps you can provide.