Laughing kookaburra Laughing kookaburra The laughing kookaburra ("Dacelo novaeguineae") is a bird in the kingfisher subfamily Halcyoninae. It is a large robust kingfisher with a whitish head and a dark eye-stripe. The upperparts are mostly dark brown but there is a mottled light-blue patch on the wing coverts. The underparts are white and the tail is barred with rufous and black. The plumage of the male and female birds is similar. The territorial call is a distinctive laugh that is often delivered by several birds at the same time, and is widely used as a stock sound effect in situations that involve
Largest organisms . "Pelagornis sandersi" is thought to have had an even larger wingspan of about , but is only about , half the mass of the former. The following is a list of the heaviest living bird species based on maximum reported or reliable mass, but average weight is also given for comparison. These species are almost all flightless, which allows for these particular birds to have denser bones and heavier bodies. Flightless birds comprise less than 2% of all living bird species. The largest living amphibian is the Chinese giant salamander ("Andrias davidianus"). The maximum size of this nearly human-sized