I live in the north- temps can be from between 10 degrees and drop to -15 at night. We have a "room" off our basement- fully enclosed with wood and plastic- so little to no drafts. We have 4 ducklings that hatched 2 months ago and are in our basement (In cages 10' long X 3' wide but only 3' tall) and you can imagine the mess! Not to mention that the ducks can't move around a lot or stretch up. We're wondering when we can put them in our outside room. We can provide a heating lamp for them. Please let me know your thoughts. Thank you.