Euchrepomis humeralis
The Chestnut-shouldered Antwren (*Euchrepomis humeralis*) is a petite and agile member of the antbird family (Thamnophilidae), renowned for its distinctive chestnut shoulder patch. Measuring only about 9-10 cm in length and weighing a mere 6.5-8.5 grams, it is among the smallest of all antwrens. Males exhibit a striking slate-gray head and upperparts, contrasting with a white belly and a prominent, vibrant chestnut patch on the bend of the wing, which serves as its primary identification mark...
This species primarily inhabits the canopy and subcanopy of humid tropical lowland evergreen forests and tall secondary growth, typically found at elevations ranging from near sea level up to about 1,000 meters in the Andean foothills.
Their diet consists mainly of small arthropods, including insects and spiders, which they meticulously glean from foliage and twigs in the forest canopy and mid-story.
Chestnut-shouldered Antwrens are diurnal and highly active, often observed as a core component of mixed-species foraging flocks, sometimes even leading them. They primarily forage by gleaning insects and spiders from the undersides of leaves and small branches, typically in the mid-story and cano...
The Chestnut-shouldered Antwren is a resident species distributed across the western Amazon Basin of South America. Its primary range extends through southeastern Colombia, eastern Ecuador, eastern Peru, northern Bolivia, and the western reaches of Brazil. It occupies lowland evergreen forests, g...
Least Concern
- The Chestnut-shouldered Antwren is one of the smallest species within the diverse antbird family (Thamnophilidae). - Despite its small size, it plays a significant role in mixed-species foraging flocks, often joining or even leading them through the forest canopy. - Its distinctive chestnut sho...