Unidentified Acro warbler at Tanybwlch. Possible Reed Warbler ? but some plumage differences noted. Well worth checking out!! Long Primary projection, no eye-ring,short tail-square ended. dark pointy short bill.No supercilium,plain underparts,buffy flanks.Wing dull with some contrast to body.Overall very dull warbler and very elusive by small hut!!Only shot obtailed before bird dissapeared to dense cover.