Didn't know where to post this, but I'm just in the planning stages at this point. Is it better to start with baby chicks than with grown birds? If so, why? I have 3 cats and a toy dog that thinks she's a great dane.LOL I thought grown chickens would set them straight, but worry about starting out with babies. I plan to let mine free range after 6-8 weeks - would that be wise with the cats and the dog?