Originally Posted by
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All my life I have seen grizz up and moving all winter. The key to remember is that a grizz does not go into a true 'hibernation' from a biologist standpoint. They slow down there metabolism and they don't move, but it isn't the kind of hibernation most people think of. I have seen grizz up in 15 feet of snow at 9000ft in the middle of January at -40F. Most commonly they are just up stretching their legs and looking for a snack.
My favourite encounter with a winter bear was when I was travelling my helicopter doing looking for wintering caribou. We saw a big boar wandering around just bellow tree line and watched him for a bit. He sniffed around some stumps for a while and started digging. Once he was way down we saw him reach his head down into a hole and shake around a little bit. Then he pulled a full grown black bear up onto the snow and started gnawing into it. The grizz must have snapped its neck right in its den and pulled it out. Later that day the grizz wandered back into its own den. The grizz was big and healthy looking. I figure he was just bored and wanted a snack.