I have also noticed that the number of fox , both red and kit fox , has some bearing on coyote numbers . When you have larger numbers of fox they tend to hunt more then coyote do . A coyote will fill it's belly then lay down till it's hungry fox tend to eat then go hunting again . The fox will eat a lot of lambs when they are young as well as birds , eggs , mice and rabbits . You will notice when you have fox around lambs as when the lambs get bigger the fox will grab them by the tail and you will see a lot of lambs with part of the tail missing . When you find fox dens they are nearly always a stinking mess of all kinds of animals and parts of animals and you can often smell them before you see them . Coyote dens tend to be cleaner then fox dens . It is about the time that the coyote will be taking their pups out of the den holes and camping out around here , 6-8 week old pups .