Pigeons make a variety of noises, including cooing, wing flapping, and clapping, depending on their mood and behavior. According to the Cornell Lab of Ornithology, the rock pigeon's song is a rolling series of throaty coos accompanied by strutting, bowing, inflating the throat, and fanning the tail
. The common wood-pigeon's wings make a whistling sound in flight, and individuals produce loud wing claps in display flights
. According to a post on pigeons.biz, pigeons make a grunt noise when they are alarmed, a soft cooing sound when they are happy, and a "roo-koo wak-wak" sound when they are threatened by another bird near their turf
. A YouTube video shows various sounds and noises that pigeons make
