The changing status of Cetti’s Warblers in Cumbria and northern Britain

The changing status of Cetti’s Warblers in Cumbria and northern Britain

Abstract

The Cetti’s Warbler Cettia cetti is a relatively recent colonist in Britain, with breeding first confirmed in 1973. Since then, the species has gradually spread northwards. Northern England and southern Scotland are now at the frontier of the species’ advance, with Cetti’s Warbler first recorded in Cumbria in 2005 and first proven breeding in 2023. The Cumbrian population is now estimated at 18 territorial males. This paper presents the changing status of Cetti’s Warbler in Cumbria and summarises the status of the species in neighbouring regions.Barry Robson

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