Which bird can laugh?

The 'Laughing Jackars ' found in Australia and New Zealand can laugh likes humans. Actually, it is not laughing, but its cry sounds like a laugh.Its belongs to the king-fisher family of birds. It feeds on a variety of animals including deadly poisonous snakes. It is 17 inches long. It usually lives near streams. It is a rare species, which is becoming extinct these days. In Australia, the laughing jackars are very valuable, as they eat the poisonous snakes. It is also called kookaburra.