Went out in the backyard to shoot a few shots, and noticed that big gaping holes have been eaten in my targets! I shoot every day or so, and the last time I shot, they weren't there. I've been shooting in this backyard for 20 years, and never had my targets eaten before. I've always had squirrels living in my backyard, but they haven't bothered anything before, also occasional visiting raccoons, skunks, possum, moles, chickens, etc. Maybe something new turned up. Anyway, here they are. Any ideas as to what could be eating them?