Plain Tyrannulet Inezia inornata Scientific name definitions

Like other Inezia, this species was originally placed in the genus Serpophaga and was only recently removed to its current position. The Plain Tyrannulet is found from southeast Peru across Bolivia and southwest Brazil to northern Paraguay, and northwest Argentina during the breeding season, but in winter it moves north to a generally unappreciated extent, reaching for example parts of the Brazilian Pantanal. Its status overall is not well known, although the species appears to be generally uncommon. This tyrannulet occurs in deciduous and semi-deciduous woodland in breeding season, but during the austral winter it seems to prefer riverine vegetation, including early successional vegetation along Amazonian rivers. The upperparts are grayish olive-brown, marked by two narrow white wing bars, an equally indistinct pale supercilium, with a gray face and pale yellowish ventral underparts.

10 cm; 5·5–6 g. Has thin whitish supercilium , and greyish to olive-grey crown and upperparts ; wings dusky, with two thin wingbars and outer edges of inner remiges dull white; tail dusky; face, chin and throat whitish, underparts dingy grey, tinged pale yellowish on lower abdomen; iris dark brown; bill thin, black, with base of lower mandible sometimes pale; legs grey. Sexes alike. Juvenile not described.

Insects; probably some fruit. Usually alone or in pairs; occasionally joins mixed-species flocks. Forages actively in dense foliage, often cocks tail slightly; mainly perch-gleans, also hover-gleans in foliage and twigs.

A somewhat musical series of thin whistles with emphatic introductory note, “psee-tee-ee-ee-ee”.