By Will Miles, David Parnaby, Becki Rosser, Jason Moss and Martin Collinson
Abstract A Grasshopper Warbler Locustella naevia was trapped, ringed and released on Fair Isle on 20th September 2012. The wing length was below the range of the nominate race but matched that for ‘Eastern Grasshopper Warbler’ L. n. straminea/mongolica. DNA analysis confirmed a close match with two birds collected on the breeding grounds in Tyva in southern Siberia, within the range of straminea/mongolica, and one from Krasnodarskiy Kray in the Caucasus. This is the first record of one of the eastern races of Grasshopper Warbler in Britain.
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