We greeted friends who have a cottage on a lake. I brought a recording of a Black-throated loon or diver as I tried to attract loons on the lake to respond. In the bright summer night I let the noice roll out on the lake, and I was waiting for respond. It is a thrill to hear the noice of a Black-throated loon, because it sounds like a ghost in the night. The noice of the Black-throated loon have been used in horror films. I understand why.
I`m working just now on my own film, which will be publish later.
Wikipedia: Black-throated Loon
YouTube; Black-throated loon