Oogi

Oogi  is a flying bison owned by Tenzin and his family. He is a descendant of a group of flying bison found by Avatar Aang after the species was thought to be extinct.

History
Oogi was used by Tenzin and his family to travel to the Southern Water Tribe to meet the newly incarnated Avatar, at which point Tenzin informed her that he would be unable to train her due to his responsibilities in Republic City. Oogi was also used to fly the family back to Air Temple Island.

Oogi later flew Tenzin and Korra back to Air Temple Island under the command of the airbending master.

When Korra went missing, Tenzin, Lin Beifong, and Team Avatar used Oogi to search for her.

Trivia

 * The Laughing Buddha is often portrayed wielding a wish granting fan, known as an oogi.
 * Oogi responds to the command "yip yip", just as Appa did.