Jess,
Asking the question about chickens and other livestock is not that far fetched. It may not seem like a productive way to manage land, but for folks that are managing smaller plots, using smaller livestock makes sense.
For instance, I have five acres with just under half of that cleared for planting. I use a chicken tractor to clear and lightly till areas to prepare for planting. This method takes some time, but the chickens are provided with a food source, control damaging pests, and fertilize the ground at the same time.
For areas that are not as clear or need to be heavily tilled, pigs are a great option. They carry the same benifits as chickens.
It is a great question to ask when you don't have the property fit to responnnnsibly maintain large breed livestock. It takes some creativity to be successful, but the methods described here carry many more benifits than what you were orgionally seeking.
Nick
