Some of my snakes love to eat birds (english sparrows). As in most places, these are considered "nusiance birds", and are not protected by any laws. So, I often shoot them with a pellet gun when it's feeding time. When I feed them to the snakes, the pellet is still inside the bird. Could the pellet be potentially harmful to the snake? I use a .177 cal lead pellet. Thanks, Ritchie