The Little Ground-Tyrant is a small terrestrial flycatcher of western Amazonia in South America. Found in Amazonian lowlands of Colombia, Ecuador, Peru, Bolivia, and Brazil below 800 meters in elevation, the species inhabits open bars on river islands as well as flat, open grassy areas. It is sandy gray-brown above with darker wings edged in buff-rust, a blackish tail, white superciliary, thin blackish bill, and off-white underparts. Little Ground-Tyrant often perches conspicuously on the ground and rarely calls. It is the only Muscisaxicola ground-tyrant found within its Amazonian range.