This grizzly bear is not being selective eating this pink salmon. Looks like the “whole” fish is to be devoured not just the eggs or the other high fat body parts. The closer it is to the end of the salmon run and therefore hibernation the more likely it is that all the salmon is eaten. It comes down to numbers; the number of days left to put on sufficient number of pounds to survive the winter. Fat brown bears are more selective and this bear’s belly is a little to far from the water meaning that it does need to add some bulk.
Also along the shore are two more sub-adult grizzlies siblings. These siblings will stay together for four or five years. If one is female they will separate when she first comes into season. This two bears are working on another source of protein – mussels. As the photo shows the grizzlies use their claws to scarp the mussels off the rocks and eat them with the shells. When the tide is higher they have to be content grazing on the sedge grass.