Isleria hauxwelli
The Plain-throated Antwren (Isleria hauxwelli) is a diminutive and often inconspicuous member of the antbird family (Thamnophilidae), inhabiting the dense undergrowth of Amazonian rainforests. Measuring a mere 8.5-9.5 cm (3.3-3.7 inches) in length and weighing just 7-9 grams, it is one of the smallest antwrens. Its plumage is largely nondescript, featuring a uniform gray coloration across its back, head, and throat, which is its most distinguishing field mark, lacking the streaks or spots fou...
Found exclusively in the dense undergrowth and vine tangles of humid lowland evergreen forests, including secondary growth, bamboo thickets, and river islands, typically below 600 meters elevation.
Primarily insectivorous, consuming a variety of small arthropods including beetles, ants, small caterpillars, and spiders, gleaned from foliage and small branches.
Plain-throated Antwrens are diurnal, spending their active hours darting through the lowest strata of the forest, typically 0.5-2 meters above the ground. They are dedicated gleaners, meticulously searching the undersides of leaves, small branches, and vine tangles for hidden arthropods. Foraging...
The Plain-throated Antwren is a resident species found exclusively within the Amazon Basin of South America. Its primary distribution encompasses southeastern Peru, northern Bolivia, and southwestern Brazil. Specifically, in Peru, it is prevalent in the Madre de Dios region and eastward. In Boliv...
Least Concern
- The Plain-throated Antwren is one of the smallest members of the diverse antbird family (Thamnophilidae), often weighing less than a quarter of an ounce. - Its genus, *Isleria*, was only formally described in 2012, highlighting ongoing discoveries and reclassifications in avian taxonomy. - Desp...