Probably 'Gonna Find Me A Bluebird' - Marvin Rainwater, from The Record Lady's All-Time Country Favorites (Spotlight On Marvin Rainwater).

GONNA FIND ME A BLUEBIRD

Gonna find me a bluebird
Let him sing me a song
Cause my heart's been broken
Much too long
Gonna chase me a rainbow
Thru' a heaven of blue
Cause I'm all through crying over you.

There was a time my love was needed
My life completed, my dreams come true
Then came the time my life was haunted
My love unwanted, all for you.

(repeat 1st verse)

~Masato