I have a baby duck who is getting to big for the Brooder Box, and we have 5 baby chicks and 2 other ducks in there, so we moved him to the Chicken coop with a Heating lamp and all, but my question is we had a previous Chick out in the Coop who is now 6 weeks old, will he be alright or does he still need a heating lamp? What age do they no longer need heat? supposed to get down in the Low 30's tonight. Just want my lil Lemons to be alright, also he wont go in the Coop he gets picked on so he found a place in with the turkeys for the night (outside)