It's shrimp season here in Maine. I've just cleaned a few pounds of shrimp and am contemplating portioning the uncooked shells to the flock. I am a little concerned about how the greedy birds will process the shrimp's rostrum - its wicked sharp, pointy beak. I could boil the shells for 20 min., dry them, and then crush them. But for time's sake, I would prefer just tossing out the raw shells to the birds. What do you think...can the birds handle ingesting the shrimp's sharp rostrums, or should I boil, etc. before offering? I could just compost the shells. Thanks for your thoughts.