A bird does not sing because it has an answer. It sings because it has a song.
Chinese Proverb

No bird soars too high if he soars with his own wings.
William Blake

Birds fly over the rainbow, Why then – oh, why can’t I? If happy little bluebirds fly beyond the rainbow why, oh why, can’t I?
Lyman Frank Baum

God gives every bird its food, but He does not throw it into its nest.
J.G. Holland

The reason birds can fly and we can’t is simply that they have perfect faith, for faith is necessary to have wings.
James M. Barrie

Life is good only when it is magical and musical … You must hear bird’s song without attempting to render it into nouns and verbs.
Ralph Waldo Emerson

I never for a day gave up listening to the songs of our birds, or watching their peculiar habits, or delineating them in the best way I could.
John James Audubon

A light broke in upon my soul–
It was the carol of a bird;
It ceased–and then it came again
The sweetest song ear ever heard.
Lord Byron (George Gordon Noel Byron)