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Forster's Tern (Sterna forsteri)Where and when to see it in the UK

Scarce migrant · reporting peaks August · Skimmers, Noddies, Terns, and Gulls · BOU category A

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

Forster's Tern (Sterna forsteri)
NaturesFan1226, CC BY 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.

Forster's Tern: 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.

Forster's Tern has been recorded in 17 of the 2,971 10 km squares covering UK land (1%) in records to 2026. Scarce migrant in the UK. Reporting peaks in August.

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

Records by 10 km square

SquareWhereRecordsYearsVerified
SZ08Dorset, England162023 to 2026unverified
SZ09Bournemouth, Christchurch and Poole, England82026unverified
SY98Dorset, England2052023 to 2025unverified
SD34Lancashire, England12025unverified
SY99Dorset, England272023 to 2024unverified
ST51Somerset, England102023unverified
SZ19Bournemouth, Christchurch and Poole, England22023unverified
TM13Suffolk, England262016unverified
TR13Kent, England42016unverified
TR23Kent, England22016unverified
J54Newry, Mourne and Down, Northern Ireland12008unverified
J55Newry, Mourne and Down, Northern Ireland12008unverified
NM82Argyll and Bute, Scotland32003unverified
NM83Argyll and Bute, Scotland12003unverified
SW53Cornwall, England62002unverified
SH57Isle of Anglesey, Wales112000unverified
TL91Essex, England82000unverified

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.