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The UK Bird Atlas

Black-and-white Warbler (Mniotilta varia)Where and when to see it in the UK

Vagrant · reporting peaks October · New World Warblers · BOU category A

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

Black-and-white Warbler (Mniotilta varia)
Wikimedia Commons, Public domain, 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.

Black-and-white 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.

Black-and-white Warbler has been recorded in 3 of the 2,971 10 km squares covering UK land (0%) in records to 2026. Vagrant in the UK. Reporting peaks in October.

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

Records by 10 km square

SquareWhereRecordsYearsVerified
SW32Cornwall, England12023unverified
SV81Isles of Scilly, England122020unverified
SV91Isles of Scilly, England122011unverified

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.