Well where you see the mom and babies that would tell me that the dad is somewhere in the neighborhood too. I know they don't associated after mating but I am sure there is a male hanging around out there. I think I would find another place to hunt :-)
I would say that they weigh more than 75 lbs. It's hard to tell though. From what I can recall, black bears give birth in the winter and the cubs can weigh up to 150 lbs by fall. My guess is those are at least 100 lbs.
Thanks. I actually saw them in person yesterday. Close enough to see the bugs flying around them. They were about 30 feet in a tree and came flying down them and took off. Needless to say, i was watching every step i took after thay