I just bought my first 2 chicks (Ameraucanas). I had a coop delivered last Sunday that I bought off Craigs List. It has a wire floor. Should I add a solid bottom to it? It doesn't seem correct that they won't have something solid to run around on (except for the nesting boxes). It also has roosting boards. The girls (Marylyn...she's blond and Audrey...brown) are in another cage with a heat lamp. Could really use your input. The previous owner of this coop had 6 chickens. Thanks!