YoUDee

YoUDee (pronounced yoo-dee) is a mascot of the University of Delaware, along with Baby Blue. It is an anthropomorphic "fighting Blue Hen", and its species is the blue hen, as the state bird of Delaware. While YoUDee appears masculine and can have male or female performers, it is "officially androgynous", "neither female or male".

According to the University of Delaware, YoUDee's colors are Blue and Gold because its great-great-great-grandfather was awarded the Gold Medal for Valor during the Battle of Trenton in the American Revolutionary War. The men in the company commanded by Captain Jonathan Caldwell actually carried Blue Hens with them into combat in order to hold cockfights in their spare time. It is said that the men under Capt. Caldwell had bravery in battles that was comparable to their fighting blue hen chickens.