The Gull-billed Tern gets its name from the fact that its bill is thicker and more gull-like than in other terns but it might have been more helpful to call it the 'gull-winged tern' as it is the broader wings and more leisurely gull-like flight which make it stand out from other terns. Its relatively large size and black bill separate it from all except Sandwich Tern b... Continue Reading