sedge warbler

noun

a European songbird, Acrocephalus schoenobaenus, of reed beds and swampy areas, having a streaked brownish plumage with white eye stripes: family Muscicapidae (Old World flycatchers, etc)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for sedge warbler