Meet Laughing Kookaburra. Are They Laughing or Screaming?

Known as the bushman's alarm clock because it has a very loud call, a laughing kookaburra vocalizes in its family group at dawn and dusk. The call sounds like a variety of trills, chortles, belly laughs, and hoots. It starts and ends with a low chuckle and has a shrieking laugh in the middle. The song is a way the birds advertise their territory.