Don't take a baby chicken into combat - unless that baby chicken is really cute. Luckily, this one is.
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— In-game description
The Baby Chicken is a pet mob in Minecraft Dungeons obtained through the Hero Pass. It is purely cosmetic and does not attack enemies, nor do any enemies target it. However, it may die from falling off the map (or walking through unsafe areas of the map). It will also appear to benefit from using a consumable item or artifact. However, it can be used to activate the Redstone Golem's mines.