Talkatoo

Talkatoo is a bird in Super Mario Odyssey that tells you the names of moons you have not gotten in that kingdom. Talkatoo appears in every kingdom except Dark Side and Darker Side, he does not appear in any kingdoms unless you have gained world peace in that kingdom. Talkatoo is a very "special" bird in Super Mario Odyssey due to his role in speedrunning and certain glitches. His speedrunning percent is called Talkatoo% (click on the link to learn more) and one of his glitches includes camera locking and even freezing in the middle of air (used for jump roping glitches).