Camptostoma obsoletum
The Southern Beardless Tyrannulet (Camptostoma obsoletum) is a diminutive, unassuming New World flycatcher, often overlooked due to its small size and subtle coloration. Averaging just 9-11 cm (3.5-4.3 inches) in length and weighing a mere 6-9 grams, it is among the smallest members of the Tyrannidae family. Its plumage is generally olive-greenish above, with a slightly darker crown and two yellowish-white wing bars on dusky wings. The underparts are pale yellowish to whitish, and a faint sup...
Occupies a wide range of semi-open and open wooded habitats, including dry scrub, forest edges, riparian zones, plantations, and parks, from sea level up to approximately 2000 meters.
Primarily insectivorous, consuming small arthropods like flies, beetles, and caterpillars, supplemented occasionally by small berries or nectar. Forages by gleaning from foliage or hover-gleaning.
This active, arboreal species typically forages in the middle to upper canopy, often moving restlessly through foliage. It employs a "hover-gleaning" technique, snatching insects from leaves and twigs while briefly hovering, and also performs short aerial sallies to catch flying prey. While gener...
The Southern Beardless Tyrannulet boasts an impressive and extensive geographic distribution, spanning much of the Neotropics. Its breeding range extends from extreme southern Texas and southeastern Arizona in the United States, south through Mexico, Central America, and across vast areas of Sout...
Least Concern
- The Southern Beardless Tyrannulet is one of the smallest flycatchers in the world, often weighing less than two U.S. pennies! - Despite its name, it does have some tiny, bristly feathers around its bill, characteristic of flycatchers, but lacks the prominent crest seen in many other tyrannulets...