. . . "The snowy-crowned tern or Trudeau's tern (Sterna trudeaui) is a species of tern in the Sternidae family.It is found in Argentina, south-east Brazil, Chile, Paraguay and Uruguay. It has occurred as a vagrant in the Falkland Islands.Its natural habitats are swamps, shallow seas, and intertidal marshes."@en . . . "LC" . . . . "IUCN3.1" . .