He can also hit you with its long tail if you get to close to it. The best thing to do is to use throwing knives for the whole fight. When you DT gauge is full, go to the ground, and hold square to do the most damage.

This fight is really easy as long as you use the healing heart to stay healthy so that you can last out all of his lifebar. Just stay at one end of the canyon while shooting, until the beast gets close enough, then dodge to the other end and repeat.