Night Time Surprise

I woke up around 3:10 am and realized that we had an owl outside. It was busily trying to connect with other owls by hooting every few minutes. It grew louder or fainter as it flew to different trees around the house. It was such a nice soothing sound, one we haven't heard in many years. I listened for a few minutes before it lulled me back to sleep. But I did realize that it stopped just before dawn when the other birds were just waking up...