"You borrowed a Pocket Egg! A Pocket Cucco will hatch from it overnight. Be sure to give it back when you are done with it."
— In-game description
The Pocket Egg

The Pocket Egg is a quest item from The Legend of Zelda: Ocarina of Time. It is similar in appearance to the Weird Egg, which Link received from Malon as a child. On the dawn of the day after Link obtains the Pocket Egg from Anju, it hatches into a Pocket Cucco. The Pocket Cucco is in turn used to wake up Talon. After this, Link returns it to Anju, who gives him Cojiro to take care of. The Pocket Egg is part of the quest for the Biggoron's Sword.