The red, fleshy part of a turkey's head is the snood, while the part that dangles under his neck is the wattle. Only male turkeys have snoods or wattles.
The snood might take up most of the forehead, or it might be barely present. Most of the time, the wattle is the most prominent of the two pieces. Male turkeys normally have their snoods and wattles turn red when they are ready to attract a mate. When scared or overstimulated, a turkey's snood and wattle might turn blue instead of red as a result of blood moving to other parts of the body.