Like most other members of its genus, this songbird can be excruciatingly difficult to see in the dense forest edge growth or wetlands it prefers. Brown with a pale supercilium and belly, faint streaking on the crown and back, and a rufous burnish to the rump and upper tail. Very similar to Pleske's and Gray's Grasshopper-Warblers but has a more contrasting brow and belly than those two and is substantially smaller than the latter. Song is dry and rattling, comprised of a series of double notes followed by longer, more mellow-sounding ones. Calls are similarly dry and short.