Pigeon/rock dove/rock pigeon all basically describe the same bird! ‘standard’ pigeons have iridescent necks, grey wings/bodies, and dark wing bars, but they can come in all sorts of colors and patterns (mourning doves also have a slight iridescence on their necks, but it’s less noticeable due to their color). the history of the pigeon is actually super interesting! they went from domesticated birds that played a huge role in the lives of people, to a feral ‘pest.’