You might think that there isn't much left here that would be of interest to a Maine black bear. However, bears tear through logs in order to get at ants that may be inside of them, and nearly every ant hill that I have come across in Petra has been torn apart by bears looking for ants to eat, so it's nothing for a bear to forage through shredded paper and cardboard for bits of food scraps that may be included in the compost.