The much maligned pigeons ... rock dove (Columba livia). Today, pigeons have been selectively bred by humans to display a bewildering variety of shapes and colours, numbering as many as 1100 breeds.
Wings make a loud clapping sound when flushed. Polytypic. Length 14.5". Larger, with a longer tail than a rock pigeon; blue-gray on the upper parts with contrasting blackish gray flight feathers ...