From 7th June 1856, when the last recorded survivor of the breeding population was shot at Surlingham, Norfolk (Stevenson 1866), Savi's Warbler Locustella luscinioiies was unknown as a British summer resident until i960 when a small population was identified in the Stour Valley at Stodmarsh, Kent, though the species may have been present there since 1951 (Pitt 1967, Kent Bird Reports 1968-71). Breeding is thought to have occurred at another locality in Kent since 1969 and the species has now extended its range to Suffolk where it nested at Walberswick in 1970 (Jobson 1971) and probably again in 1971, and also at Minsmere in the latter year. In the long period between cessation and resumption of breeding, the only records now accepted of Savi's Warbler were of two vagrants, one of which was shot, on Fair Isle, Shetland, on 14th May 1908 (Clarke 1909), and a singing male at Wicken Fen, Cambridgeshire, from 2nd June to mid-August 1954 (Boston 1956). Since i960, however, the species has occurred in Britain with increasing frequency and its breeding in new sites was expected. Almost all recent occurrences have been in the nesting season (Pitt 1967, reports of the Rarities Committee, various county reports, P. J, Roberts, C. J. D. Shackles, F. R. Smith, and D. C. H. Worsfold in lift.):i960 KENT: Stodmarsh, 18th April-3rd August, three singing (J(J, two pairs bred. SOMERSET: Chew Valley Lake, 24th and 30th July, singing $. 1961 KENT: Stodmarsh, 25th April-ist July, one or two singing