Hi! I have a few questions for all you chick experts! lol It has been awhile since I have had chicks in the house so I cant remember a whole lot. Anyways, I have 10 Serama chicks that I hatched out with my incubator. And they are all staying in the basement. They are 4 weeks old and I want to take them outside supervised to let them run around and stretch for 15 minutes or so. So....Are they too young? What temp is safe enough for them? And do they have to be on chick grit? oh and one more thing! My other chickens free range, so the chicks would be running around where they have pooped, so would this matter? Thanks!