Aythya collaris (Donovan, 1809)
Family: Anseriformes > Anatidae
A rare, but regular, visitor from North America, with many individuals apparently re-appearing at the same site in multiple years. The pattern of occurrence is complicated by frequent escapes from wildfowl collections
Ring-necked Duck identification is sometimes difficult.
Develop your bird ID skills with our training courses
Our interactive online courses are a great way to develop your bird identification skills, whether you're new to the hobby or a competent birder looking to hone your abilities.Browse training courses
Status and Trends
Population size and trends and patterns of distribution based on BTO surveys and atlases with data collected by BTO volunteers.
This species is a rare vagrant and was recorded during Bird Atlas 2007–11 as shown on the map.
Occupied 10-km squares in UK
|No. occupied in breeding season||1|
|% occupied in breeding season||0.03|
|No. occupied in winter||65|
|% occupied in winter||2.2|
This vagrant has been recorded in several atlases so we have been able to map distribution changes. However, as a rarity these may not show a consistent pattern of change.
|% change in range in winter (1981–84 to 2007–11)||+300%|
Ring-necked Duck is a scarce vagrant, usually detected in winter.
Information about movement and migration based on online bird portals (e.g. BirdTrack), Ringing schemes and tracking studies.
Lifecycle and body size information about Ring-necked Duck, including statistics on nesting, eggs and lifespan based on BTO ringing and nest recording data.
Sample sizes are too small to report Productivity and Nesting statistics for this species.
|Field Codes||2-letter: NG | 5-letter code: RINDU | Euring: 2000|
For information in another language (where available) click on a linked name
Would you like to search for another species?