You won't see anything in the video posted, but you will hear a hopeful cry in the dark. This is our mockingbird calling to his beloved in the still of the night. He is lonesome and alone, hoping someone out there will hear him and answer his call. We hope so too. :)
The mockingbird reminds me of another kind of cry in the dark, the cry of lonely, hurting people looking for someone or something to soothe the anguish of their souls, never realizing that Jesus loves them and died to wash away their sins. Jesus once cried out in the dark of the night too, in the Garden of Gethsemane. He cried out to His Father on the night before His Crucifixion. "Father, if it is possible, let this cup pass from Me." But there was no other way to redeem a lost and dying world. Jesus, God's only son, had to die and be raised again to give us that hope. The pains and sorrows of life don't disappear when we give our hearts to Him. There is still pain and sorrow. But we, like Paul and Silas while they were imprisoned for their faith, can have a song in the night because we know that we belong to Jesus and He gives us hope.