I have two Rouen ducklings about 5 to 6 weeks old and growing fast ! I'd like to move them to the unheated garage, but lows are still getting in the 40's at night. Are they able to stay warm enough if I provide a small heat lamp in a corner of the brooder ( 4x4 chicken wire pen) When will they be able to stay out side over night without a heat lamp ? -Thanks








