Any of various North American birds of the genus Sialia in the thrush family. Their plumage is blue or blue and red.

plural of bluebird

(soccer) Someone connected with Cardiff City Football Club, as a fan, player, coach etc.

(soccer) Cardiff City Football Club, a football club in Cardiff.

plural of Bluebird

A species of bluebird found in eastern North America, Sialia currucoides.

plural of fairy bluebird

A small passerine bird (genus Irena, the only genus in the family Irenidae) of southern Asia.

plural of mountain bluebird

Happiness or contentment, especially as the elusive object of a quest or as a state of affairs which is difficult to achieve.