Myrmotherula ambigua
The Yellow-throated Antwren (Myrmotherula ambigua) is a diminutive and striking member of the antbird family (Thamnophilidae), typically measuring around 9.5-10 cm (3.7-3.9 in) in length and weighing 7-9 grams. Males are distinguished by their dark grey upperparts, a prominent white supercilium contrasting with black lores and cheeks, a vibrant yellow throat, and white underparts streaked with black on the breast. Two bold white wing-bars are also characteristic. Females share a similar patte...
Found in humid lowland and foothill evergreen rainforests, typically frequenting the dense understory, forest edges, and treefall gaps. It occurs at elevations primarily below 900 meters, occasionally reaching up to 1200 meters.
Primarily insectivorous, feeding on small arthropods such as beetles, caterpillars, spiders, and ants. It forages mainly by gleaning from foliage and twigs.
This antwren is a highly diurnal species, typically active from early morning to late afternoon. It almost exclusively forages as a core member of mixed-species insectivorous flocks, gleaning small arthropods from the undersides of leaves and thin branches in the lower to mid-story (1-10m) of the...
The Yellow-throated Antwren is endemic to northern South America, with a resident distribution spanning eastern Colombia, southern Venezuela, northern Brazil (particularly in Roraima, Amazonas, and Pará states), Guyana, Suriname, and French Guiana. This range primarily encompasses the vast Guiana...
Least Concern
- The scientific name *Myrmotherula ambigua* translates to 'doubtful antwren,' reflecting the initial taxonomic confusion over its unique combination of features. - It is almost always found as an integral part of mixed-species foraging flocks, showcasing a classic example of interspecies coopera...