The Flavescent Warbler (Myiothlypis flaveola) is a species of bird in the Parulidae 
family. Its name comes from flavescent, a yellowish colour. It is found in Argentina, Bolivia, Brazil, Colombia, Guyana, Paraguay, and Venezuela. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical moist lowland forests. The Flavescent Warbler is olive above with a short narrow eyestripe, blackish loral stripe and bright golden yellow underparts. It forages by hopping or walking on or near the ground, sometimes joining mixed species flocks. The Flavescent Warbler often attracts attention to itself with its loud, rapid song.
Flavescent Warbler (Myiothlypis flaveolus) at Ireng River (Photo be Kester Clarke www.kesterclarke.net)