When I was a kid in the early 80s I saw a movie, probably from 60s or 70s, that went sort of like this:
A group of cowboys (at least white horsemen) found a woman who had survived a killing among the group of men she had been travelling with. They take her along but then strange things happen - one by one they men are killed, too. In the end it turns out the killer was the woman herself, and the final scene ends when some eagle (I suppose) flies to her with the bow and arrow. She was some sort of legend or so, although I do not remember what.
I would love to see this again since it was really scary.