fruit-eating mostly brilliant blue songbird of the East Indies
"After months of searching, ornithologists finally photographed a rare bluebird in its native habitat on Sumatra."
blue North American songbird
"We spotted a bright bluebird hopping along the fence post in our backyard yesterday morning."
Any of various North American birds of the genus Sialia in the thrush family. Their plumage is blue or blue and red.
"After years of supporting the team from the stands, Sarah finally became an official bluebird when she signed her first season ticket for the upcoming campaign."
Someone connected with Cardiff City Football Club, as a fan, player, coach etc.