Another hunter once asked me if I had ever heard blood curdling howls while in the bush...screams like a man being painfully tortured. Apparently he heard something late one night that he never forgot or could ever explain. "No" I said "and I can't imagine what it might of been". I think this video might have his answer. Amazing how human like the vocalizations are. Maybe this explains some of the samsquatch rumours.
https://www.youtube.com/watch?v=Fg9_ZnojxmU