Foothill Elaenia Myiopagis olallai

Inconspicuous flycatcher of Andean cloud forest. Plumage varies geographically but always has a gray head, olive back, and yellow spots on wings that may or may not form distinct wingbars. Underparts are bright yellow in most of its range. In northern and central Colombia, it has a pale gray throat and breast and a yellow belly. Usually found at middle levels of the forest, often with mixed-species flocks. Vocalizations include a series of downslurred notes and a rapid trill.