I'm as new as they come to chicken raising but we have a couple of acres and my wife wants chickens. Making a coop now in preparation for spring. I've been perusing the forum quite a bit to get ideas for a coop. I have a shed/playhouse that the old homeowners left behind that I was going to repurpose for a coop. It looks like many of the coops I have seen are about 2-3 ft above ground. Why is that? Is that a requirement? I was going to just make a run for them with a door a ground level for them to go in and out of. First of many questions I am sure. Thanks.