My ducklings was hatched from Metzer Farms on March 6th. I wanted to know if I could put them outside. They housing will have a heat lamp in it, but what about their run? Can they be outside in the cold without the heat lamp. The lowest it gets is 34°F and highest is 58°F. Should I keep them inside their duck coop? They are starting to get some feathers. I had 15 all Mallard Ducklings, and they never smelled as bad as these cuties do! Plus they make such a mess and spill their water everywhere. I now have them raised on wire mesh with kiddie pool under them to catch the water. The ducklings I have are: 2 Mallards, 3 Pekins, 4 Welsh Harlequin, 1 Buff Orp Duck, 1 Cayuga , and 1 White Muscovy hatched the day after the others from Freedom Hatchery.