The Helmeted Guineafowl is the best known of the Guinea Fowl bird family. It breeds in Africa - mainly south of the Sahara - in warm, fairly dry and open habitats with scattered shrubs and treestsuch as savannahsor farmland. The nest is a well-hidden, generally unlined scrape, and a clutch is normally 6-12 eggs which the female incubates for 26-28 days. Nests containing larger numbers of eggs are generally believed to be the result of more than one hen using the nest - eggs are large and an incubating bird could not realistically cover significantly more than a normal clutch. The chicks are cryptically coloured and rapid wing growth enables them to flutter onto low branches barely a week after hatching. These guineafowl live as long as 12 years in the wild.

The Helmeted Guineafowl is a large (53-58 cm) bird with a round body and small head. They weigh about 1.3 kg. The body plumage is gray-black spangled with white. Like other guineafowl, this species has an unfeathered head, in this case decorated with a dull yellow or reddish bony knob, and red and blue patches of skin. The wings are short and rounded, and the tail is also short.

This is a gregarious species, forming flocks outside the breeding season typically of about 25 birds that also roost communally. Guineafowl are particularly well-suited^[ to consuming massive quantities of ticks, which might otherwise spread  lyme disease. These birds are terrestrial, and prone to run rather than fly when alarmed. They have a short-lived explosive flight and rely on gliding to cover extended distances. Helmeted Guineafowl are great runners, and can walk 10 km and more in a day. They make loud harsh calls when disturbed. Their diet consists of a variety of animal and plant food; seeds, fruits, greens, snails, spiders, worms and insects, frogs, lizards, small snakes and small mammals. Guineafowl are equipped with strong claws and scratch in loose soil for food much like domestic chickens, although they seldom uproot growing plants in so doing.