I really don't care if it is legal or ethical but if someone shoots into the deeks they will be punched and thrown out of the blind and asked to never return. Deeks are expensive. If the bird is wounded I'll send the dog after it.
OK, full disclosure. I shot Mojo. A flock of mallards was coming into the decoys and I shot a beautiful greenhead near the bottom of the flock. A stray pellet hit the spinner and blew a hole in his wing, leaving a disfigured whirling reminder of my mistake. Wounded birds on water? If the pond is small, I'm quick to send the dog. On bigger water I'll quickly execute the cripple as I've seen that merry chase too many times.
