bluebird \blue"bird`\, n. zool.
   a small song bird sialia sialis, very common in the
   united states, and, in the north, one of the earliest to
   arrive in spring. the male is blue, with the breast reddish.
   it is related to the european robin.
   1913 webster

   pairy bluebird zool., a brilliant indian or east indian
      bird of the genus irena, of several species.
      1913 webster
see also:
sialia sialis pairy bluebird irena