Think you're right on the nest raiders. Was working out earlier in my little building out back and all of a sudden my dog took off. I peeked out and she was chasing a hen that eventually flew into a tree. Dog came back and about 5 minutes later I hear turkey clucking. She's maybe 30 yards away and I tell my dog to stay and she does but she's on full alert ready to pounce. All that to say the hen didn't have a single poult with her.