Hello friends! Just wondering if anyone has opinions on tossing a bunch of (cooked) crab claws/ shells to the chickens? They are the really big ones with bumps on the claws. The claws, not the chickens I would think it may add some protein/ calcium? And winter fun? Maybe dry & grind them up? I would freeze these to use later (as I am in a no-treat period with my flock & trying to stabilize their winter diets). Thanks for your advice & ideas!