Hawk Summoning is a sub jutsu that can be obtained at the Samurai Bridge. It has a spawn time of 1 hour and 30 minutes. To unlock it, the user requires 450 rage points. This summon is ride able, and will fly, but is really slow.
(Side note: It can fly faster if ridden on as it hits any npc and at the same time, however, you won't be able to walk on walls as the side effects.)