so far we still have all 15 they are feathering out all nice and are having some really nice colors and patterns on the feathers.Its been warm enough around here that I have started turning the light off and letting them out in to the little run I have made off the brooder . it about a 5ft x 5ft area. they seem to enjoy it a lot. they are going on week 2. again so far so good. and yes while they are out I do check on them constantly.