I keep reading that I need to build my coop 2 feet off the ground. Is this so animals won't dig underneath or wood rot? The area that i want to build my coop is on a hill. If I have the coop off the ground it will be really high off the ground on one side and much lower on the other side. Not really a big deal but it won't look as nice! What about if I have it on blocks on the top of the hill and above ground on the lower part? The other option is to dig the coop into the hill on the higher side. I am going to line the whole coop with that metal fabric since we have weasels here. I have heard that it's impenetrable.