Ruddy Duck, Rosse Stekelstaart, Schwarzkopf-Ruderente, Pato-rabo-alcado-americano
Spotted in the Alentejo region of Portugal. Ruddy Duck sound
The Ruddy Duck (Oxyura jamaicensis) is a duck from North America and the Andes Mountains of South America, one of the stiff-tailed ducks.
Adult males have a rust-red body, a blue bill, and a white face with a black cap. Adult females have a grey-brown body with a greyish face with a darker bill, cap and a cheek stripe. The southern subspecies ferruginea is occasionally considered a distinct species. It is separable by its all-black face and larger size. The subspecies andina has a varying amount of black coloration on its white face; it may in fact be nothing more than a hybrid population between the North American and the Andean Ruddy Duck. As the Colombian population is becoming scarce, it is necessary to clarify its taxonomic status, because it would be relevant for conservation purposes.
Their breeding habitat is marshy lakes and ponds. They nest in dense marsh vegetation near water. The female builds the nest out of grass, locating it in tall vegetation to hide it from predators. A typical brood contains 5 to 15 ducklings.
They are migratory and winter in coastal bays and unfrozen lakes and ponds.
These birds dive and swim underwater. They mainly eat seeds and roots of aquatic plants, aquatic insects and crustaceans.
As a result of escapes from wildfowl collections, they are now established in Great Britain, from where they have spread widely into Europe. This duck’s aggressive courting behaviour and willingness to interbreed with the endangered native White-headed Duck (Oxyura leucocephala), of southern Europe, has caused some concern. Due to this, there is now a controversial scheme to extirpate the Ruddy Duck as a British breeding species; there have also been culling attempts in other European countries.
Other synonyms:
Catalan: Ànec de jamaica, Ànnera de Jamaica
 Catalan (Balears): Ànnera de Jamaica
 Czech: Kachnice kaštanová
 Welsh: Hwyaden goch
 Danish: Amerikansk skarveand
 German: Schwarzkopfruderente, Schwarzkopf-Ruderente
 English: North American Ruddy Duck, Ruddy Duck, Ruddy Duck (Ruddy), Sleepy Duck
 Spanish: Malvasía Canela, Malvasía Rojiza, Pato Cariblanco, Pato Chorizo, Pato Espinoso, Pato Malvasia de Cara Blanca, Pato rana de pico ancho, pato telpalcate, Pato Tepalcate, Pato zambullidor grande
 Spanish (Argentine): Pato zambullidor grande
 Spanish (Chile): Pato rana de pico ancho
 Spanish (Cuba): Pato Chorizo
 Spanish (Dominican Rep.): Pato Espinoso
 Spanish (Mexico): pato telpalcate, Pato Tepalcate
 Spanish (Nicaragua): Pato Cariblanco
 Estonian: Valgepõsk-händpart
 Basque: Ahate herdoiltsua, Ànec de Jamaica
 Finnish: kuparisorsa, Kuparivartti, Kupariviuhkasorsa
 Faroese: Tonut skarvsont
 French: Canard roux, Erismature rousse, Érismature rousse
 Irish: Lacha Rua
 Galician: Ànec de Jamaica, Malvasía americana
 Haitian Creole French: Kanna plonjon
 Hungarian: Feketefeju halcsontfarkú réce, Feketefej? halcsontfarkú réce, Halcsontfarkú réce
 Icelandic: Hrókönd
 Italian: Gobbo della Giamaica, Gobbo rugginoso americano
 Japanese: akaotategamo
 Latin: Oxyura jamaicensis, Oxyura jamaicensis jamaicensis, Oxyura jamaicensis jamaicensis/andina
 Dutch: Rosse Stekelstaart, Rosse Stekelstaarteend
 Norwegian: Stivhaleand
 Polish: sterniczka jamajska
 Portuguese: Pato-rabo-alçado-americano
 Slovak: potáplica bielolíca, Potápnica bielolíca
 Slovenian: belolicna trdorepka
 Swedish: Amerikansk kopparand
 
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