My house sits on about 1/4 acre. Give or take. I've been running (up to at one point) 21 hens in a coop and run in the back yard for five years. Recently I've decided to redo my backyard and change my chicken plans. I want to toy with the idea of 'grazing' about 12 hens in a tractor around the front side and backyard and keeping about 6 in the coop and making the run smaller. Has anyone used a tractor in a small ish piece of land? Benefits to the grass? Any pros and cons welcome. I need to do something, my backyard needs to be redone.