uh, to keep this from dieing...

Howlett, use Ancient power again, drive the stone into his undamaged wing. If this drops him from the sky, use slash on his throat, lets make that bird bleed. If it is still in the air, use Ancient power again to hit him in the back with a large stone, attempt to drive him to the ground and crush him under it. If it is grounded, use Hydropump on his head. If it is still in the air, use Ancient Power again to drive it from the sky, hit the bird in the head.

(Ancinet Power ~ Ancient Power/Slash ~ Ancient Power/Hydropump)