The cockatiel - an example of a crested bird species

Several bird species exhibit prominent feathered crests upon their heads. Generally used for display purposes, the crest can be either fixed or erectile, depending upon the species in question. Cockatoos and cockatiels, for example possess crests which may be raised or lowered at will and are used as a method of visually communicating with other members of the same species. Image File history File links Gustav, a captive-bred Cockatiel. ... Image File history File links Gustav, a captive-bred Cockatiel. ... Binomial name Nymphicus hollandicus (Kerr, 1792) The Cockatiel or Nymphicus hollandicus is a type of cockatoo endemic to Australia that is prized as a household pet. ... Orders Many - see section below. ... For other uses, see Feather (disambiguation). ... Only meanings of encyclopedic scope are listed here for disambiguation purposes. ... Genera Probosciger Calyptorhynchus Callocephalon Eolophus Cacatua Nymphicus A cockatoo is any of the 21 bird species belonging to the family Cacatuidae. ... Binomial name Nymphicus hollandicus (Kerr, 1792) The Cockatiel or Nymphicus hollandicus is a type of cockatoo endemic to Australia that is prized as a household pet. ...