Not to jump on this thread but I can add to this...That really nasty crazy sound could be a fox. I know, that sounds kind of crazy but I've seen it myself several times and it WILL scare the piss out of you when you hear it. Sounds insane.
A fox makes a most baleful and inhuman sound/bark that will take the nerve out of a hardened man in the blackness of night. Simple as that. Chances are, that was your huckleberry. You get used to it back this way but it still sounds awfull. I do know a feline that staired that bark in the face and stayed the course though.