A cewar ƙamus na Turanci na Oxford, “bluebird” suna ne da ke nufin ƙaramin tsuntsun waƙar Arewacin Amurka mai launin shuɗi. Har ila yau, a wasu lokuta ana amfani da shi azaman alamar farin ciki ko sa'a, kamar yadda yake a cikin jumlar "Bluebird of Happy."