Seagull

Seagulls, also referred to as albatrosses [timestamp needed] or simply gulls, are real life birds that have appeared with gameplay roles in several Mario-related games.

''Wario Land II
In Wario Land II, gulls first appear in the level Get in the Tea Cup. They are harmless and are found flapping their wings in one place in midair. Wario can use them as platforms to reach remote locations; however, they fly away before long once he touches them but come back shortly afterwards.

Game & Watch Gallery series
Albatrosses appear in the Modern version of the Game & Watch title Donkey Kong Jr. in Game & Watch Gallery 3 and Game & Watch Gallery 4. In these games, when Donkey Kong Jr. gets the key on the second stage, an albatross appears and acts as a platform so that he can reach his father's cage. Unlike its Wario Land II counterpart, the albatross does not fly away when Donkey Kong Jr. touches it. However, it does regularly fly away for a short time, forcing Donkey Kong Jr. to time his jump carefully. An albatross also occasionally appears in the background of the Modern version of Fire from Game & Watch Gallery 4.

Mario Party 8
Seagulls reappear in Mario Party 8, flying in the background of the Goomba's Booty Boardwalk board.