Bremen Mask

The Bremen Mask, resembling a bird, is given to Link by Guru-Guru in Majora's Mask. When used, it makes domestic animals other than cows and horses follow Link, who leads them in a brisk march as Link plays his ocarina. It also makes Chicks grow into Cuccos, which has the Bunny Hood as a reward.

The mask appears to be named after a Grimm's Fairy Tale titled "The Bremen Town Musicians" in which a group of animals (a donkey, a dog, a cat and a rooster) decide to leave their masters and become traveling musicians.

If you use it around the two Ikana warriors (not the King), they will become confused and march to the tune.