Beginning in March, prairie chickens in Missouri gather to perform an age-old mating ritual. Its held during the early morning and evening hours on a high, open area called a booming ground. Each male attempts to attract a female while defending their territory from other males. The male produces the unusual “booming” call as he sucks air into bright orange air sacs found on both sides of his neck. The booming draws-in females. They watch as males charge each other, jump into the air, fight, stamp their feet, and display their colorful air sacs. Females presumably choose the most impressive males.