Pigeon sounds have become a staple short effect online because pigeons are everywhere in daily life, from parks and stations to rooftops and streets. This short cooing clip is shared on soundboards as a quick, recognisable bird call that creators can drop into almost any edit without explanation. It works for realistic ambience, for signalling an outdoor city location, and for jokes built around an ordinary bird acting like a main character. Its popularity comes from that instant recognition and from how easily it fits both serious and silly footage.