My chicks are 12 days old. They seem a little bored, I thought it might be fun to bring them out onto the grass in a open-bottomed wire play pen (formerly used for my guinea pig). I would do this on a sunny nice day, which right now ranges from mid 60's-mid 70's where I am, but it is typically breezy. I am not worried about predators, them being unattended, etc, because I am planning to literally sit next to them in a lawn chair. I just thought they might like the sun and would maybe get a kick out of the grass. Is it too soon? Would they be chilly? Also, I haven't bought grit yet since they've only eaten chick starter so far. Should I have grit if they play in the grass in case they eat it? Or will they just get that from the ground? (I have a skimpy lawn so there's plenty of sandy patches throughout the grass). Thanks!