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The UK Bird Atlas

Great Spotted Cuckoo (Clamator glandarius)Where and when to see it in the UK

Scarce migrant · reporting peaks May · Cuckoos · BOU category A

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

Great Spotted Cuckoo (Clamator glandarius)
Yathin S Krishnappa, 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.

Great Spotted Cuckoo: 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.

Great Spotted Cuckoo 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 May.

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

Records by 10 km square

SquareWhereRecordsYearsVerified
TM57Suffolk, England22023unverified
SS41Devon, England22019 to 2020unverified
TG14Norfolk, England432009 to 2019unverified
TG04Norfolk, England152009 to 2019unverified
SZ57Isle of Wight, England62019unverified
SY66Dorset, England282016unverified
SY67Dorset, England192016unverified
SN90Rhondda Cynon Taf, Wales52015unverified
SS19Pembrokeshire, Wales142014unverified
SY28Devon, England32014unverified
SW71Cornwall, England22014unverified
SW61Cornwall, England12014unverified
SN10Pembrokeshire, Wales12014unverified
SW32Cornwall, England42001 to 2009unverified
TQ10West Sussex, England112005unverified
TA41East Riding of Yorkshire, England132003unverified
SZ39Hampshire, England352000unverified

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.