Chickens. Give a fertile egg about 21 days and a warm incubator... and magic happens.
There are about 40 chickens at the farm house. They have free range but generally stick to the backyard. They are inquisitive creatures, who occasionally chase a snake, are friendly with the ducks, and do an amazing job of "grooming" Goldie's poop into manure!
There are some roosters but they probably know that there is no restriction in their being here because they certainly strut around.