Overview
The Red-knobbed Coot (Fulica cristata), also known as the Crested Coot, is an iconic aquatic rail native to the freshwater wetlands of Africa and southwestern Europe. Closely resembling the common coot with its soot-black body and stark white facial shield, it is celebrated for the two vibrant, blood-red fleshy knobs that crown its forehead during the breeding season.
Biology and Physical Characteristics
The Red-knobbed Coot has uniform slate-black to charcoal plumage, dark red eyes, and a chalky-white bill that extends upward into a smooth white frontal shield. At the top of this shield sit two distinctive, bright crimson caruncles (knobs) that swell dramatically in breeding adults. Its long, greenish-grey toes bear wide, scalloped swimming lobes that provide powerful aquatic propulsion.
Behavior and Ecology
Highly territorial and aggressive on the water, Red-knobbed Coots vigorously defend nesting territories, rearing out of the water and thrashing with their clawed, lobed feet in violent boundary disputes with rival coots and waterbirds. They are excellent divers, plunging repeatedly beneath the surface for up to twenty seconds to harvest underwater waterweeds.
Conservation and Human Impact
Ranked as Least Concern globally due to immense abundance across southern and eastern Africa, the European subpopulation in southern Spain and Morocco is endangered, numbering only a few hundred breeding pairs due to historical wetland drainage and hunting. Active captive breeding and wetland restoration projects in Andalusia are helping revive European populations.
Interesting Factoid
During the spring breeding season, the two fleshy bumps on the forehead of the Red-knobbed Coot swell up into two brilliant ruby-red horns that signal reproductive vitality to mates and warn rivals to stay away.