Thanks for the tag, Bob. @Theeremmy, Mama Heating Pad works by warming the Littles directly, not by warming the entire space, which is why it’s so effective. I’m going to get on my computer and see if I can still find the video that inspired me to try using a heating pad in the first place. Patrice Lopatin made it a few years ago, and I know she had turkeys in hers along with chicks. I know that video is posted a few pages into the Mama Heating Pad thread - just a matter of doing a little digging.
I’ve never raised turkeys myself, but here in Northwestern Wyoming wild turkeys are raising their young in the snow, and just letting the babies duck under for a quick warmup. Like all poultry, overheating can cause a lot of problems, one of which is dehydration -despite drinking - as a result of being totally surrounded by the warm, dry air from the lamp. While I’m not saying that’s what yours are having issues with, it is a possibility.