BIRDWALKERMONDAY: RED KNOBBED COOT (Fulica cristata)

Showing posts with label RED KNOBBED COOT (Fulica cristata). Show all posts

Monday, 5 May 2025

30-4-2025 EL HONDO, ALICANTE - RED KNOBBED COOT (Fulica cristata)

The Red-knobbed Coot, also known as the Crested Coot, is a striking waterbird with a predominantly black plumage contrasted by a distinctive white frontal shield. It is a medium-sized bird, measuring 35–42 cm in length with a wingspan of 75–85 cm. The males, slightly larger than the females, weigh between 770 and 910 grams, while females range from 455 to 790 grams. Both sexes appear similar in plumage. The species is characterized by its long, strong toes with partial webbing, an adaptation to its aquatic lifestyle.

To distinguish the Red-knobbed Coot from its close relative, the Eurasian Coot, one must look for the two small red knobs atop the facial shield, which are only present during the breeding season and are not visible from afar. The black feathering between the shield and the bill is rounded, as opposed to the pointed feature in the Eurasian Coot. Additionally, the bill of the Red-knobbed Coot has a subtle bluish-grey hue. In flight, unlike the Eurasian Coot, it lacks the white trailing edge on its secondaries.

This coot favors freshwater lakes and ponds as its primary habitat, where it can be seen swimming or walking along the water's edge.

The Red-knobbed Coot is a resident breeder across much of Africa and can also be found in the southernmost parts of Spain.

The Red-knobbed Coot is known for its bold and less secretive nature compared to other members of the rail family. It exhibits strong territorial behavior during the breeding season and is known to be quite aggressive, even towards larger birds. It swims with a characteristic bobbing of the head and is capable of short dives. When taking off for flight, it runs across the water surface, creating a noticeable commotion.

Both sexes contribute to building a bulky platform nest of reeds and plant stems, often situated in shallow water. The female lays a clutch of 5–7 eggs, which are incubated by both parents for 18–25 days. The precocial chicks are mobile shortly after hatching and receive parental care for about 55–60 days.

An omnivorous bird, the Red-knobbed Coot feeds on a variety of small live prey, including the eggs of other water birds. It predominantly consumes waterweeds, such as Potamogeton species, for which it will dive.

The Red-knobbed Coot is currently listed as Least Concern on the IUCN Red List, indicating that it is not at immediate risk of widespread decline.

During mating, the Red-knobbed Coot is quite vocal, emitting a variety of sounds including a fast "kerrre" similar to the Little Crake, a harsh "ka-haa," and a grunting "oot oot" hoot. These vocalizations are distinct from those of the Eurasian Coot.

Wednesday, 20 November 2024

20-11-2024 EL HONDO, ALICANTE - RED KNOBBED COOT (Fulica cristata)

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.

Tuesday, 4 June 2024

4-6-2024 EL FONDO, ALICANTE - RED KNOBBED COOT (Fulica cristata)

The red-knobbed coot or crested coot, (Fulica cristata ), is a member of the rail and crake bird family, the Rallidae.

The habits of the red-knobbed coot are practically identical to those of the Eurasian coot. It is much less secretive than most of the rail family. Where it is undisturbed it is likely to bully any intruder, even large birds such as Egyptian geese, if they do not defy its challenges. It can be seen swimming on open water or walking across waterside grasslands. It is an aggressive species, and strongly territorial during the breeding season.

The red-knobbed coot is reluctant to fly and when taking off runs across the water surface with much splashing. It does the same, but without actually flying, when travelling a short distance at speed (to escape a rival, for example, or to dispute possession of a choice morsel). It bobs its head as it swims, and makes short dives from a little jump.

The red-knobbed coot is an omnivore, and will take a variety of small live prey including the eggs of other water birds. Its main food in most waters however comprises various waterweeds such as species of Potamogeton for which it commonly dives.

This is a noisy bird during mating, but its vocalisations are quite different from the Eurasian coot. It gives a fast kerrre like the little crake, a harsh ka-haa and a grunting hoot "oot oot" that suggests that the name "coot" might be onomatopoeia, but inspection of the etymology of "coot" fairly decisively negates any such suggestion.