Hi, I just purchased a coop intended for chicks for up to 6 months. Since we are cheap we are going to use it for adults. It looks like a rabbit hutch and it is 4x3 and it is on stilts. we have 6 hens and 1 rooster (hopefully) they are goimg to be freerangers will this work. If not my dad and I are going to build and extension for them. They do not have a lot of shelter in thier from predators.