yea like I said most do den up
But to be honest, it all depends on the bear, even in AK< some will stay active based on food and well THE bear itself
its one of them things most folks just take for granted, bears denning up in winter
I have seen them out down the farm in -10 degree temps, and thats not with a feeder or hand out, just walking about in swamps
while I was looking for sheds in mid late feb, but to be honest, I have seen them about every month of the yr out and about
but again, its not many that run about in winter

I knew Gary Alt, one of the most re known bear biologist in the world for yrs, he lived near me, and I learned a lot ,
with talking to him, /helping him over the yrs
he is a very nice guy that knows more aboutblack bears,
I would say than anyome else in the world.
things he did with them, and stories he can tell are amazing!
if you ever see him giving a seminar some place its well worth the trip, knows a LOT about deer too!
Bears are just super cool critter to me