We saw more then one mom with cubs at the Vince Shute Wildlife Sanctuary. The cubs spent much of their time in the trees, where they are a bit safer because they can climb out on small branches where larger bears can not go.
This was one of three cubs that belonged to a mother that was feeding near the deck in the sanctuary. She was bigger and seemed more confident then the other mother bear that stayed at the edge with her cubs. I am guessing that she was an older more experienced mother.