i can't remember where i read it, but somewhere along the way i remember reading that after shutting down in the fall, the bees will start rearing brood again after the winter solstice.
i found a palm-sized patch of brood in a nuc last friday, and i have recently noticed an occasional dead larvae being thrown out of a few of my larger hives.
i'm sure it varies depending on what part of the country you are in, but are any of you seeing any signs of early brooding?
the other thing is that on the rare days when it is warm enough to fly and not raining my bees are finding pollen. i'm seeing red, pale yellow, and orange-yellow. the average low temp here this time of year is just below freezing.