Hi Andrew $ Tiffany,
   I have never had to moves bees in the winter but I would think it is
an excellent time to do it. The bees are dormant or should be. If it
were me I would make sure that each hive is secured with straps or
wooden cleats to hold them(supers,tops and bottom boards) together and
would also place some screen over the entrance even if the is a reducer
in place.
   I would also make sure that the hives were covered during transit.
Old blankets or tarps. Anything to keep a windchill factor from coming
into play, taking off any heat from the hives. That's all I can think
off.
   As to hurting the bees. I think that when they wake up in the spring
they will be just fine. Waking up, yawning, looking out, and saying Hmmm
something has changed. They won't care. They will go through the same
process as new bees finding the way around the beeyard and where home
is.
   Good luck. How many hives do you need to move and where are you
located. You might have mentioned it in your message, but I don't have
message quoting on so the message isn't here in front of me.
   Wish you well. Try not to shake them up to much and all should be
fine
Gary C. Lewis
Duke Center, Pa.
USA