My hens are ten weeks old, they are standard size so they have grown a lot! My question is that my neighbor and I have cats, one of them is smaller but pretty fiesty...I was going to wait until they were 13 weeks old to let them out, but they're getting stir crazy and I'm having to move their movable coop every day. What's a good rule of thumb of maturity age/size to let them out during the day? I'm not home a lot during the day because I work so I'd hate for something to happen to them while I'm gone. Thanks for the help!