Myrmotherula grisea
The Yungas Antwren (Myrmotherula grisea) is a diminutive and often understated member of the antbird family (Thamnophilidae), known for its subtle beauty and specialized montane habitat. Measuring a mere 9-10 cm (3.5-3.9 inches) in length and weighing just 8-10 grams, it is a master of camouflage within the dense forest understory. Males are largely plain gray, slightly paler on the underparts, often with darker lores that subtly frame their dark eyes. Females share this general grayish pluma...
Found in the understory and mid-story of humid montane forests, cloud forests, and forest edges, typically at elevations between 1,000 to 2,000 meters (3,300-6,600 feet) in the Andean Yungas.
Primarily insectivorous, consuming a variety of small insects and other arthropods, which it gleans actively from foliage and small branches.
The Yungas Antwren exhibits a highly active diurnal foraging pattern, diligently gleaning small insects and arthropods from the undersides of leaves and small branches. It is frequently observed as a core member of mixed-species foraging flocks, moving rapidly through the mid-story and undergrowt...
The Yungas Antwren has a restricted yet stable distribution along the eastern slopes of the Andes, specifically within the humid montane forests known as the Yungas. Its breeding range extends from southern Peru, primarily in the department of Puno, southward through Bolivia, encompassing the dep...
Least Concern
- The Yungas Antwren is one of approximately 28 species within the genus *Myrmotherula*, many of which are collectively known as 'gray antwrens,' making identification challenging without careful attention to vocalizations and subtle plumage details. - Despite its small size, it's a key component...