Ordering my day old White rocks.....

[Egghead_Jr]

Tractors for meat birds is very common. The better tractors use small welded wire and encorporate aprons that fold down to lay on the ground to prevent digging into it.

 

[Mosey2003]

Yes, you'll want to use 1/2" hardware cloth attached either with washers and screws or with a piece of wood trim over and screwed, and long enough to form an apron on the ground. If you just staple it on, even with poultry fence staples, a determined raccoon could pull it off. Other wire fence can be strong enough, but you don't want a hole big enough for a little paw to reach in since they'll sleep in a corner and along the sides.