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The UK Bird Atlas

Canvasback (Aythya valisineria)Where and when to see it in the UK

Scarce migrant · reporting peaks November · Ducks, Swans, and Geese · BOU category AE

Records to 2026-08-16 · build 2026-08-31

Canvasback (Aythya valisineria)
Dick Daniels (https://carolinabirds.org/), CC BY-SA 3.0, via Wikimedia Commons

Too few records to rate squares by month. Each marked square has at least one record; the table below gives the count and years.

Canvasback: relative reporting rate by 10 km square, September

Contains OS data © Crown copyright and database right 2026 (grid squares, place names from OS Open Names). Northern Ireland place names: OSNI Open Data, OGL v3.0. County and country boundaries: Office for National Statistics, Open Government Licence v3.0. Coastline: Natural Earth. Bird records from the data partners listed here.

Canvasback has been recorded in 12 of the 2,971 10 km squares covering UK land (0%) in records to 2026. Scarce migrant in the UK. Reporting peaks in November.

Conservation status: Least Concern (IUCN Red List, LC)
View on the IUCN Red List

Records by 10 km square

SquareWhereRecordsYearsVerified
TL91Essex, England3182000 to 2026unverified
SS89Neath Port Talbot, Wales12020unverified
TQ00West Sussex, England12019unverified
TQ28Brent, England12012unverified
TL77Suffolk, England22010unverified
SK07Derbyshire, England12010unverified
TL87Suffolk, England22009unverified
SE28North Yorkshire, England12008unverified
SE27North Yorkshire, England12008unverified
SJ69Warrington, England92002 to 2007unverified
TR02Kent, England202000 to 2001unverified
TR01Kent, England72000 to 2001unverified

Spotted an error in a square? Report it and it goes into the review queue. Read the methodology for how classes, flags and sensitive-species rules work. Data to 2026.