A plump white or gray bird that makes a cooing sound is a dove. In both religious and secular contexts, doves are often used to symbolize peace.
Doves and pigeons are closely related, and the two names are often used interchangeably. These round, short-necked birds live almost everywhere on the earth, with the exception of Antarctica, the highest elevations of the Arctic, and the Sahara Desert. In politics, a person whose priority is advocating for peaceful solutions is often referred to as a dove.