Grouse are interesting birds because of their mating habits. Males have elaborate courtship rituals in which they display their feathers, strut around and make noises to attract a female. Once a pair is formed, the male helps the female build a nest and protects her and the eggs until they hatch. After hatching, the chicks follow their mother around until they are old enough to fend for themselves. Grouse are also interesting because of their diet. They eat mostly berries and seeds, but can also survive on insects or other small animals.