Can you identify the bird in this video

Can you identify the bird in this video?  I love the sound and would like to add it to other videos.  I think this is the call of our area.  I love the video the artist that made it for me was thinking at all times about the end result.  This was not the first time I had a drone photographer to video a lake but this was the first time I had one come out with a storyboard of how he visualized the end result to be before we started.  I think he did a great job of showing all the shoreline and contrast of the lake. If you are looking for property on a private lake, look at Lake Cherokee.  Call Gwen for the inside scoop on all the private lakes in the Oconee Area. 864-916-2019