I've discovered that the Buckeyes are eating a forest/woodland tuber in their diggings. I saw something several times that looked like a grub before but it was eaten so fast I couldn't make it out. But last evening I was out there with a shovel to see if I couldn't help Hazel out with whatever they're finding by turning over some shovelfuls. Besides worms and such they are grabbing these orange-colored things that look like overgrown ticks with long legs. They treat the larger ones like animals, whacking them into submission before eating them. I finally managed to nab one (gotta be quick!), and it's a cone-shaped tuber with roots on one end. So I tried it. Delicious! Crispy and juicy like a radish but mild flavor, no heat. It tasted like "Indian Cucumber," a small woodland flower in the US Northeast that has a long white tuber. I don't know what this is.The molting diet is very different. @Shadrach has said it before and my observations back him up. They need different nutrients and they know how to find them.