Weird Sounds in the Woods

I am very familiar with the hoots of the great horned owl, barred owl and screech owls that inhabit our woods. Tonight while lying on the bed writing in my journal there have been a series of loud noises that could be a different type of owl, but have an almost eerie animal quality to them. I've really never heard anything like it in all the years I've lived up here (since 1973).

This is the type of thing scary stories are derived from- unknown, unidentified strange noises emanating from the dark wood on a chilly autumn night.

The sound has moved away deeper into the woods.

For all I know, it could be a werewolf!