When I’m up it’s still quiet. Total silence, pitch dark.

Then, every morning, there is this one bird that will start singing. All by himself.
Complete silence, only disturbed by this one bird and his song.

He sings until there’s a reply; another song, by another bird. For however long that takes, he sings.

The moment he hears the reply, he’s gone. Not to be heard until the next morning.
I think it’s his job to announce the birth of the new day.