The red-knobbed coot or crested coot, (Fulica cristata ), is a member of the rail and crake bird family, the Rallidae.
It is a resident breeder across much of Africa and in southernmost Spain on freshwater lakes and ponds. It builds a nest of dead reeds near the water's edge or more commonly afloat, laying about 8 eggs (or more in good conditions). However, its behaviour towards its own young is so aggressive that only a few are likely to survive to adulthood.
The red-knobbed coot is largely black except for the white frontal shield. It is 38–45 cm (15–18 in) long, spans 75–85 cm (30–33 in) across the wings and weighs 585–1,085 g (1.290–2.392 lb). As a swimming species, it has partial webbing on its long strong toes. The juvenile is paler than the adult, has a whitish breast, and lacks the facial shield; the adult's black plumage develops when about 3–4 months old, but the white shield is only fully developed at about one year old, some time later.
A good view is necessary to separate this species from the Eurasian coot, with which its range overlaps. There are two tiny red knobs at the top of the facial shield, which are not visible at any great distance and are only present in the breeding season; the black feathering between the shield and the bill is rounded, whereas in Eurasian it comes to a point; and the bill has a bluish grey tinge. In flight, the red-knobbed coot lacks the white trailing edge to the secondaries of the Eurasian coot.
