Birds flock together

The very idea of a bird is a symbol and a suggestion to the poet.
A bird seems to be at the top of the scale, so vehement and
intense his life. . . . The beautiful vagabonds, endowed with
every grace, masters of all climes, and knowing no bounds — how
many human aspirations are realized in their free, holiday-lives
— and how many suggestions to the poet in their flight and song!
John Burroughs