Sitting on exposed roots along the Rio Napo in Ecuador. Heavily cropped. f6.3, iso 800, exp comp minus one, 1/500. "Description: 13cm. Generally drab and nondescript, pale rump, top of head and nape, wings and tail darker, crown contrasting slightly with nape, pale superciliary and darker loral stripe; below slightly paler and more sandy. Variation with some paler above and others have paler throats, whilst many have vestigial paler fringes to wing-coverts, and coloration of crown not consistent. Such variations might be age-related. Also moult appears quite rapid, with several birds moulting an entire row of wing-coverts simultaneously. Blake (1950) found 3 specimens from southern Guyana to be browner and darker than series from Brazil and Peru, and their remiges and wing-coverts also lacked buffy- or pale-coloured fringes of Peruvian birds. Juvenile has crown concolorous with back, and wing-coverts and remiges have paler fringes, producing irregular but fairly broad wingbars. Rather like Spot-billed Ground-Tyrant, but completely different altitude! Also similar to Little Water Tyrant, but separated by whitish lores and pale rump, and latter has pale spot at base of lower mandible." Op.cit.: Birds of Northern South America, Restall et al., 2006