On these really warm winter days when there is nothing out there for the bees to gather but they are foraging, put out a dry pollen feeder. We have the Ultra Bee Dry Pollen Substitute in the feeder and the bees are collecting it and taking it back to the hives. This gives them something to collect during these warm spells and they will start rearing more brood with the extra protein form the pollen. The bees love it!