They could be, if you got on their bad sides. But they're not a violent people by nature. Just... not especially picky eaters. Avoid getting caught in their hunting traps, and you'll likely be fine.

It definitely wasn't a conventional alliance, but it worked out well for all involved. And I made a new friend in the bargain; an Ewok named Wicket. He found me in the forest after my speeder-bike had crashed and eventually led me back to his village.