The Eastern cottontail rabbit is the only rabbit species in Wisconsin. They can typically gray in color and grow to about a foot in length. Cottontails can be found throughout Wisconsin in both grasslands and urban areas. We will never have a shortage of rabbits due to the fact that they breed at least 3 to 4 times a year and produce 1-7 young in each litter. Rabbits absolutely love to eat anything green it sees. During the spring and summer months, they will eat leafy plants. During the winter months, they will eat the bark off of small trees and bushes.