Listen, a Mockingbird

Listen, a mockingbird.
I can't imagine when
He ever sleeps.
A mockingbird's song
is something we will often hear.

When does the mockingbird sleep?
Or does he ever?
His song is one
That we often hear.
His song is never-ending.

Listen, a mockingbird.
Hear his song.
Wonder not if he ever sleeps.
For his song is one
That we will always hear.