My point is that these birds are still young and temperatures in the single digits are dangerous. I don’t care if you turned off your furnace or if birds can handle the cold (of course they can) but if these ducklings are still young, which I’m still not clear on age (I’m assuming 4-8 weeks?) then denying them a heat source in the middle of winter, while they still have not out-grown their brooder, is unfair. If they needed it at a time in their life that means they can get cold, and is what warms them up. Ducklings cannot be given added heat forever or else they will not learn how to adjust, but DENYING ducklings who haven’t outgrown the heat source is unfair. I don’t like to use heat lamps either but sometimes it’s the only way. Ducklings DIE because people say they don’t need a heat source, but in truth, they’re still young and shocking temperatures are hard on them when they don’t have the support of a heat source