My sister was moving some downed wood in the forest today, and she broke a big punky branch so she could carry it easier, and inside she found an overwintering bald-faced hornet queen! It's only about 46F out right now, so she was not at all mobile, but she did move her antennae when touched, so she was definitely alive. She had her wings tucked underneath her abdomen for some reason, maybe to keep them warm or protected. My sister felt bad for exposing her, so she put her in some fleece we have in an old barn where some bumble bees used to have a nest, in the hopes that will be enough insulation for her to survive the winter.