Hi . I have two chicks (one is 8 weeks old, and the other is 9 weeks). They have been living in our bedroom inside a big galvanized Behlen County trough and, for the last week or so, I have been taking them outside to our tractor, during the day. I have been bringing them in at night. They seem fully feathered to me (no fuzz), though underneath their wings (in their little chick armpits ) there is still a small spot of bare skin. Should I let them sleep in the top of the tractor this evening, or do I need to wait a little longer? They have started kicking up a lot of dust, and it would be nice to get them on their way to joining the flock. Our adult birds sleep in the large coop. It's been in the mid to high 40s during the day, here. Tonight's low is supossed to be 34. Thanks!