Northern White-fringed Antwren

Formicivora intermedia

The Northern White-fringed Antwren, Formicivora intermedia, is a diminutive and engaging member of the Thamnophilidae family, characteristic of the dry scrublands and arid lowlands of northern South America. Reaching a modest length of 12-14 cm and weighing only 9-14 grams, this species exhibits notable sexual dimorphism; males are striking with a broad white supercilium contrasting against a black facial mask and throat, set off by dark grey upperparts and a white-fringed tail. Females prese...

Habitat

The Northern White-fringed Antwren primarily inhabits arid and semi-arid scrublands, dry deciduous woodlands, dense second-growth thickets, and forest edges, typically at low to moderate elevations up to 1000 meters.

Diet

Primarily insectivorous, consuming a variety of small arthropods including ants, beetles, caterpillars, and spiders, which it gleans from dense foliage and twigs.

Behavior

This active, diurnal species is typically observed singly or in pairs, rarely joining mixed-species foraging flocks. Foraging involves meticulously gleaning insects and spiders from dense foliage and branches, often close to the ground, with short, quick hops and occasional hovering. Pairs mainta...

Range

The Northern White-fringed Antwren (*Formicivora intermedia*) is a resident species found exclusively in the northern parts of South America. Its primary distribution includes the northern coastal regions of Colombia, extending into the Cauca Valley, and across northern Venezuela, encompassing bo...

Conservation Status

Least Concern

Fun Facts

- The Northern White-fringed Antwren's genus name, *Formicivora*, literally translates to "ant-eater," reflecting its diet and family affiliation, though it consumes a wider variety of insects than just ants. - Unlike many antbirds that follow army ant swarms, this species is less commonly associ...

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