Redhead
Introduction
The Redhead is known to lay eggs in the nests of other birds, including at least 10 other duck species and even nests of the American Bittern and Northern (Hen) Harrier.
This duck breeds in the "Prairie Pothole" region of the western US and Canada, migrating to the southern US States in winter, so is only very rarely blown off-course sufficiently to reach our shores.
Key Stats
Status and Trends
Conservation Status
Population Size
Population Change
Population trends of this scarce species are not routinely monitored.
Distribution
This vagrant is too rarely reported to map distribution.
Distribution Change
This vagrant is too rarely reported to map distribution change.
Seasonality
This species has been too rarely reported to BirdTrack during 2011–22 to properly assess seasonality.
Movement
Britain & Ireland movement
Biology
Survival and Longevity
Survival is shown as the proportion of birds surviving from one year to the next and is derived from bird ringing data. It can also be used to estimate how long birds typically live.
Classification, names and codes
Classification and Codes
- Order: Anseriformes
- Family: Anatidae
- Scientific name: Aythya americana
- Authority: Eyton, 1838
- BTO 2-letter code: AZ
- Euring code number: 1990
Alternate species names
- Catalan: morell americà
- Czech: polák americký
- Danish: Amerikansk Taffeland
- Dutch: Amerikaanse Tafeleend
- Estonian: preeriavart
- Finnish: amerikanpunasotka
- French: Fuligule à tête rouge
- German: Rotkopfente
- Hungarian: amerikai barátréce
- Icelandic: Kollönd
- Italian: Moriglione americano
- Latvian: dzeltenacis
- Lithuanian: amerikine rudagalve antis
- Norwegian: Kobberhodeand
- Polish: glowienka preriowa
- Portuguese: zarro-americano
- Slovak: chochlacka žltooká
- Slovenian: rumenooka sivka
- Spanish: Porrón americano
- Swedish: amerikansk brunand
