My first thought would be rabbits. You sometimes see Fur outside before they start breeding, clear out old and line with new.
Or maybe it was a rabbit but something, mink, ferret, etc, pulled it out and the bedding fur came out with it?
The scat is a bit tricky, have you got a photo? - although a carnivore will often deficate where it smells another animal has been so the scat is not very diagnostic.
I love an animal mystery, I'd wait and see what starts using it! - keep and eye out for some tiny footprints

. Or wild life camera?