Quite widespread in the region, but declining, in line with a national trend. Appears to be persisting more successfully in some areas than in others, in particular low-lying areas northeast of Oxford and in Buckinghamshire, and in east Berkshire.

Recorded in 48 (62%) of 78 10k Squares. First Recorded in 1896. Last Recorded in 2022. (Data up to end 2022) Additional Stats

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