>>1107094Those look like Shagbark Hickory nuts to me. Either way, you need to wait for them to dry out for a couple months so the meat inside shrinks away from the shell. It makes shelling them much easier. FYI, hickory nuts are a bitch to shell in comparison to walnuts. You have to hit them just so-so with a hammer instead of using a nut cracker. As far as picking them. Grab all you can, that are on the ground, as soon as they fall off naturally.