Short, fine bill Now this is what even a hardcore warbler lover may admit is a bit of a dull-looking bird, though they would immediately spot its scarcity. It is a brown job, lacking the green tones of most leaf warblers and also lacking the strong dark eyestripe that members of that genus go in for. There are no wing-bars and the overall impression is of a high-crowned, dainty Hippolais warbler, too ‘cute’ for one of the more robust Acrocephalus (reed) warblers. There are a few very similar species: Western and Olivaceous, Booted and Sykes’s. The small bill and short primary projection point to the latter two, which are very hard to distinguish in the field; the primaries are probably long enough and bill short enough to conclude this is a Booted Warbler.
KEY FEATURES Nondescript brown warbler Lacks wing-bars Open face like a mix between a Hippolais and Phylloscopus warbler Hint of dark line above short pale supercilium