So I had a little tractor build for my chicks that I was soon hatching out. Its put together with two screen doors and plywood on the opening end and wire on the other. I can easily pick it up and move it around the yard, and nothing-I repeat Nothing- can get in or get out. I have went out there a plenty of time to see my dog slobbering over the tractor, and i once saw two snakes together circling the cage. I think it is so cute and a great use for anyone with chicks. I have even had chicks at only one week old and even some silkies a few days old and I went on a put them out there, with no problem, and they are healthily grown. They have a little "stable" with a swinging door that has a roof and they sleep under. it's so adorable! And when it rains, i just drag a tarp overtop.