yeah and it doesn't matter whether the dog had tags or not
it's unethical, i've had wild house cats (i know, oxymoron but i wanted to make sure they weren't confused with bobcats etc..) walk past my stand and I didn't shoot them. Yeah if I ever knew my dog got shot it would not be a good day for whoever had done it.
My dads best bird dog he had found in the woods, saw it 3 days in a row but it was always too afraid of him, the third day he brought food and the dog came up to him. We reported the pooch to the police and everything else and no one ever claimed her.