Red-knobbed Coot

Identification

The red-knobbed coot is a largely black water bird, 35–42 cm long with a wingspan of 75–85 cm. Its most distinctive feature is a white frontal shield on the face, which gives the species its alternative name, the crested coot. Males are slightly heavier than females, weighing 770–910 g compared to 455–790 g. Like other coots, it has partial webbing on its long, strong toes, an adaptation for swimming. Juveniles are noticeably paler than adults, with a whitish breast, and lack the facial shield entirely; the adult's black plumage develops around 3–4 months of age, while the white shield takes about a year to fully form.

Where its range overlaps with the Eurasian coot in northwestern Africa and southern Iberia, careful observation is needed to distinguish the two species. The red-knobbed coot has two tiny red knobs at the top of its facial shield—visible only in breeding season and from close range—and the black feathering between the shield and bill is rounded rather than pointed. The bill itself has a bluish-grey tinge, and in flight, this species lacks the white trailing edge on the secondaries visible in the Eurasian coot.

Range & Habitat

The red-knobbed coot is a resident breeder across much of Africa and in southernmost Spain, inhabiting freshwater lakes and ponds. Rather than being migratory, populations remain year-round in their chosen ranges, making them reliably present for observers visiting suitable wetlands.

Behaviour & Diet

The red-knobbed coot shares many habits with its Eurasian relative but is far less secretive than most members of the rail family. On undisturbed waters, it is notably bold and territorial, willing to challenge intruders—even large birds such as Egyptian geese—if they fail to back down. It spends much of its time swimming on open water or walking across waterside grasslands, bobbing its head as it moves and making short dives from a jump. When alarmed, it is reluctant to fly but will run across the water surface with vigorous splashing, or perform the same motion without actually taking flight when traveling short distances to escape rivals or compete for food.

The diet is omnivorous and opportunistic, including small live prey and the eggs of other water birds, but waterweeds form the mainstay of its diet in most waters, particularly species of Potamogeton which it commonly dives to reach. The species is notably vocal during the breeding season, producing sounds distinct from the Eurasian coot: a fast kerrre call, a harsh ka-haa, and a grunting hoot that has led some to speculate the name "coot" is onomatopoetic, though etymological evidence suggests otherwise.

Best Time & Places to See It

Look for red-knobbed coots on freshwater lakes and ponds across much of Africa and in southernmost Spain. As resident breeders, they are present year-round in their ranges. The breeding season is particularly rewarding, when birds are more vocal and territorial, making them easier to locate and observe. Undisturbed wetlands with open water and waterside vegetation offer the best viewing opportunities.

Photography Tips

The white facial shield and distinctive black plumage make the red-knobbed coot a striking photographic subject. To distinguish it from the Eurasian coot in overlap zones, photograph the facial shield detail and bill coloration in good light, and capture flight shots to reveal the absence of a white trailing edge on the secondaries. The bird's willingness to remain on open water and its habit of bobbing its head as it swims provide excellent opportunities for close approach and behavioral photography. Early morning light will best showcase the contrast between the black plumage and white shield.