Heard while walking along a forest road by night.
The recording doesn't really pick up the lower frequencies which sometimes followed the shriek. I also heard something heavy moving at one point.
I'm guessing the call was provoked by the disturbance of my torch and footsteps.
I did think at one point, quite possibly mistakenly, that there might be two animals as occasionally it seemed as if there was a call and answer.
Beautiful and eerie.
Footprints and flipper marks from a bird heading out to sea on Back Beach this morning, just to the south of the steps