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The UK Bird Atlas

Pallas's Grasshopper Warbler (Helopsaltes certhiola)Where and when to see it in the UK

Scarce migrant · reporting peaks September · Grasshopper Warblers, Grassbirds, and Allies · BOU category A

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

Pallas's Grasshopper Warbler (Helopsaltes certhiola)
Tisha Mukherjee, CC BY-SA 4.0, 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.

Pallas's Grasshopper Warbler: 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.

Pallas's Grasshopper Warbler has been recorded in 18 of the 2,971 10 km squares covering UK land (1%) in records to 2026. Scarce migrant in the UK. Reporting peaks in September.

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

Records by 10 km square

SquareWhereRecordsYearsVerified
HU45Shetland Islands, Scotland122024unverified
NZ36South Tyneside, England82024unverified
HU32Shetland Islands, Scotland82024unverified
HY75Sea, off Orkney Islands12024unverified
HU54Shetland Islands, Scotland12023unverified
HZ27Shetland Islands, Scotland192007 to 2022unverified
NF09Na h-Eileanan Siar, Scotland12022unverified
HU56Shetland Islands, Scotland92003 to 2020unverified
HP61Shetland Islands, Scotland62002 to 2020unverified
TF84Norfolk, England152017unverified
HU38Shetland Islands, Scotland62017unverified
HU46Shetland Islands, Scotland12017unverified
NZ46South Tyneside, England52012unverified
HZ26Shetland Islands, Scotland22012unverified
TA41East Riding of Yorkshire, England32008unverified
HT93Shetland Islands, Scotland12008unverified
TG04Norfolk, England542001unverified
TF94Norfolk, England12001unverified

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.