Rhynchocyclus aequinoctialis
The Western Olivaceous Flatbill (Rhynchocyclus aequinoctialis) is a small, rather inconspicuous flycatcher of the Neotropics, measuring approximately 12.5-14 cm (5-5.5 inches) in length and weighing around 12-18 grams. Its plumage is subtly beautiful, featuring an olivaceous green back, wings, and tail, contrasting with a yellowish wash on its underparts, often brighter on the belly. A distinctive feature is its relatively large, flattened bill, dark on the upper mandible and paler on the low...
This species primarily inhabits the humid to wet lower and mid-story of tropical and subtropical evergreen forests, often found near water bodies or within swampy areas. It prefers elevations from lowlands up to about 1,200 meters (4,000 feet) in the Andean foothills.
The primary diet of the Western Olivaceous Flatbill consists almost exclusively of insects, including small beetles, flies, and caterpillars, supplemented occasionally with spiders. It primarily employs gleaning-sallying techniques, snatching prey directly from foliage.
The Western Olivaceous Flatbill is a diurnal and generally solitary bird, though pairs remain together during the breeding season and may occasionally join mixed-species foraging flocks. It typically perches quietly within the dense understory, making short, quick sallies to snatch insects from t...
The Western Olivaceous Flatbill has an extensive range across northern and western South America, primarily within the Amazon and Orinoco basins and adjacent lowland forests. Its breeding and resident range spans from eastern Panama (Darién province) and northern Colombia eastward through Venezue...
Least Concern
- Its exceptionally wide and flattened bill, from which it derives the "Flatbill" name, is a perfect adaptation for snatching insects off leaves in flight. - Despite being a "flycatcher," it primarily gleans insects from foliage rather than making extensive aerial chases like many other flycatche...