Owl

Owl´s or Fukurō, like hawks, can be used for long-distance communication. Contract::Motoi is able to summon owls so that he can quickly relay messages from the Island Turtle to Kumogakure.

Trivia

 * The owl summoned by Motoi has whisker-marks like Naruto's and markings on its stomach.
 * In the anime, the ninja monks from the Fire Temple use owls as messenger birds.