Answer:

bluebird

AnswerCrossword Clue
BLUEBIRDCountry singer?
BLUEBIRDThrush family member
BLUEBIRDHelen Reddy tune of 1975
BLUEBIRDSign of spring.
BLUEBIRDSymbol of happiness
BLUEBIRDMaeterlinck's "The ..."
BLUEBIRDColorful songster
BLUEBIRDColorful member of the thrush family