Habitat: The Antwren species favors humid forests and second-growth woodland habitats in the lowlands. Distribution: This species has been reported from Honduras to northern Bolivia and southeastern Brazil. Natural History Notes: The White-flanked Antwren forages on insects and other arthropods from the lower tree level foliage. We can hear frequently the call of this bird, which consists of a descending "chee-doo" or "chee-chee-do". Conservation status according to IUCN 2008 Red list: Least Concern (LC). It is a resident species. Characteristics: This species has a total length of 3.5 inches (measured from tip of bill to end of tail). This bird has a pointed black bill and the iris black. The male has a plumage mostly black with some white spots on the wing-coverts and the tail tipped white. We can also distinguish fine white lines along the flanks and the white under wing-covers (distinguished when the bird is flying). The female females looks different with a gray-brown coloration on the above and beige spots on the wing-coverts. The throat is whitish, the underparts are beige and the flanks are whitish.