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Harlequin Duck (Histrionicus histrionicus)Where and when to see it in the UK

Scarce migrant · reporting peaks January · Ducks, Swans, and Geese · BOU category A

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

Harlequin Duck (Histrionicus histrionicus)
Peter Massas, CC BY-SA 2.0, 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.

Harlequin Duck: 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.

Harlequin Duck has been recorded in 15 of the 2,971 10 km squares covering UK land (1%) in records to 2026. Scarce migrant in the UK. Reporting peaks in January.

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

Records by 10 km square

SquareWhereRecordsYearsVerified
HY75Sea, off Orkney Islands32023unverified
NF60Na h-Eileanan Siar, Scotland22023unverified
HP61Shetland Islands, Scotland102022unverified
NF09Na h-Eileanan Siar, Scotland12022unverified
NA10Na h-Eileanan Siar, Scotland12022unverified
SJ46Cheshire West and Chester, England12020unverified
NJ90Aberdeen City, Scotland542015unverified
NC80Highland, Scotland12015unverified
NC90Highland, Scotland12015unverified
NF77Na h-Eileanan Siar, Scotland82013unverified
NF67Na h-Eileanan Siar, Scotland62013unverified
NF66Na h-Eileanan Siar, Scotland32013unverified
NF76Na h-Eileanan Siar, Scotland12013unverified
NB43Na h-Eileanan Siar, Scotland52004unverified
NB44Na h-Eileanan Siar, Scotland12004unverified

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.