What is the red hood on the head of a turkey called?

The red hood on the head of a turkey is called a "wattle." It is a fleshy, wrinkled piece of skin that hangs down from the turkey's throat and is often more pronounced in male turkeys, or toms. The wattle, along with the snood (the fleshy growth that hangs over the beak), plays a role in attracting mates and can change color based on the turkey's mood and health.