wow, that last pic is of a real bruiser. Ears look small for its head and there is very little transition from head to body, the old no-neck. The first pics I agree are small bears, lots of daylight between gut and ground and also the ears on the one look like satelite dishes, but he'll get bigger next year! At least you have some coming around. In my experience, when there are ton of bears hitting a bait, then there (generally) isn't a monster in the area. I have hunted a couple different areas and if there is a bunch of bears hitting the bait, then all of a sudden the activity dies off but the bait is still gone, that is often a sign that a real brute has moved into the area as they are very territorial of their chow. Good luck at getting one!