Coot

Revision as of 01:51, 24 May 2025 by imported>OAbot (Open access bot: url-access updated in citation with #oabot.)
(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)

Template:Short description {{#invoke:other uses|otheruses}} Template:More citations needed Template:Automatic taxobox

Coots are medium-sized water birds that are members of the rail family, Rallidae. They constitute the genus Fulica, the name being the Latin term for "coot". Coots have predominantly black plumage, and—unlike many rails—they are usually easy to see, often swimming in open water.

Taxonomy and systematicsEdit

The genus Fulica was introduced in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae.<ref>Template:Cite book</ref> The genus name is the Latin word for a Eurasian coot.<ref>Template:Cite book</ref> The name was used by the Swiss naturalist Conrad Gessner in 1555.<ref>Template:Cite book</ref> The type species is the Eurasian coot.<ref>Template:Cite book</ref>

A group of coots is referred to as a covert<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> or cover.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

SpeciesEdit

The genus contains 10 extant species and one which is now extinct.<ref name=ioc>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Image Scientific name Common name Distribution
File:Hawaiian Coot RWD1.jpg Fulica alai Peale, 1848 Hawaiian coot or Template:OkinaAlae keTemplate:OkinaokeTemplate:Okinao Hawaii
File:American coot in Prospect Park (06152).jpg Fulica americana Gmelin, 1789 American coot southern Quebec to the Pacific coast of North America and as far south as northern South America
File:Andean Coot RWD3.jpg Fulica ardesiaca Tschudi, 1843 Andean coot Argentina, Bolivia, Chile, Colombia, Ecuador, Peru
File:Red-gartered Coot RWD8.jpg Fulica armillata Vieillot, 1817 red-gartered coot Argentina, southern Brazil, Chile, Paraguay, Uruguay
File:Common Coot Eurasian coot Fulica atra by Dr. Raju Kasambe DSCN3784 (1).jpg Fulica atra Linnaeus, 1758 Eurasian coot or common coot Europe, Asia, Australia, and Africa
File:Fulica cornuta 117475270.jpg Fulica cornuta Bonaparte, 1853 horned coot Argentina, Bolivia, Chile
File:Fulica cristata -Cape Town, South Africa -adult-8.jpg Fulica cristata Gmelin, 1789 red-knobbed coot Africa, Iberian Peninsula
File:Riesenblaesshuhn fulica gigantea Chile crop.jpg Fulica gigantea Eydoux & Souleyet, 1841 giant coot Argentina, Bolivia, Chile, Peru
File:Fulica leucoptera GALLARETA CHICA.jpg Fulica leucoptera Vieillot, 1817 white-winged coot Argentina, Bolivia, Brazil, Chile, Falkland Islands, Paraguay, Uruguay
File:Fulica rufifrons - Red-fronted coot; Punta del Este, Uruguay.jpg Fulica rufifrons Philppi & Landbeck, 1861 red-fronted coot Argentina, southern Brazil, Chile, Paraguay, southern Peru, Uruguay

Extinct speciesEdit

Recently extinct speciesEdit

Late Quaternary speciesEdit

Fossil speciesEdit

DescriptionEdit

Coots have prominent frontal shields or decoration on their foreheads, with red to dark red eyes and coloured bills. Many have white on the under tail. The featherless shield gave rise to the expression "as bald as a coot",<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> which the Oxford English Dictionary cites in use as early as 1430. Coots have long toes with broad lobes of skin that allow them to kick and propel themselves through the water. The lobes of skin fold back each time the coot lifts its foot, allowing them to walk on dry land while also providing support in mucky terrain.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> They tend to have short, rounded wings and are weak fliers, though northern species nevertheless can cover long distances. They typically congregate in large rafts in open water. Along these rafts coots may lay eggs in their own nest or in some other bird’s. Depending on the species of coot the eggs can vary in color: buff, pinkish buff or buff-gray speckled with dark brown, purplish brown, or black.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Distribution and habitatEdit

The greatest species variety occurs in South America, and the genus likely originated there. They are common in Europe and North America.<ref>Olson, Storrs L. (1974). "The Pleistocene Rails of North America." Museum of Natural History.</ref> Coot species that migrate do so at night. The American coot has been observed rarely in Britain and Ireland, while the Eurasian coot is found across Asia, Australia and parts of Africa. In southern Louisiana, the coot is referred to by the French name "poule d'eau", which translates into English as "water hen".<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Behaviour and ecologyEdit

Coots are omnivorous, eating mainly plant material, but also small animals, fish and eggs.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> They are aggressively territorial during the breeding season, but are otherwise often found in sizeable flocks on the shallow vegetated lakes they prefer.

Chick mortality occurs mainly due to starvation rather than predation as coots have difficulty feeding a large family of hatchlings on the tiny shrimp and insects that they collect. Many chicks die in the first 10 days after hatching, when they are most dependent on adults for food.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Coots can be very brutal to their own young under pressure such as the lack of food, and after about three days they start attacking their own chicks when they beg for food. After a short while, these attacks concentrate on the weaker chicks, who eventually give up begging and die. The coot may eventually raise only two or three out of nine hatchlings.<ref>The Life of Birds, David Attenborough. The Problems of Parenthood. 10:20.</ref> In this attacking behaviour, the parents are said to "tousle" their young. This can result in the death of the chick.<ref>Clutton-Brock, TH., The Evolution of Parental Care, Princeton University Press, 1991 p. 203.</ref>

ReferencesEdit

Template:Reflist

External linksEdit

Template:Sister projectTemplate:Commons category multi

Template:Gruiformes Template:Taxonbar Template:Authority control