Arremon castaneiceps
The Olive Finch (Arremon castaneiceps) is a captivating New World sparrow, a jewel of the humid tropical understory. Measuring approximately 15 cm (6 inches) in length and weighing between 23 and 28 grams, it boasts a distinctive appearance. Its most striking field mark is a rich chestnut crown, framed by a gray head with an olive wash, and contrasting olive-green upperparts. The underparts are pure white, often with a subtle grayish tinge on the flanks, and some subspecies may display a fain...
Primarily found in the dense understory of humid montane and foothill forests, as well as forest edges and secondary growth. It typically inhabits elevations ranging from 600 to 2000 meters above sea level.
Feeds primarily on insects and other small invertebrates gleaned from leaf litter and forest floor, supplemented with small seeds and berries when available.
The Olive Finch is a diurnal and notably reclusive bird, often observed foraging solitarily or in pairs on the shaded forest floor, rarely joining mixed-species flocks. It employs a meticulous ground-gleaning foraging strategy, using its bill and feet to carefully sift through leaf litter and exp...
The Olive Finch's distribution is concentrated in Central and northwestern South America, spanning across humid montane and foothill forest ecosystems. Its range extends from central Costa Rica, eastward through Panama, and southward along the Andean slopes of Colombia, Ecuador, and into northern...
Least Concern
- Despite its common name, the Olive Finch is not a 'true finch' (family Fringillidae) but is classified as a New World Sparrow (family Passerellidae). - Its most distinctive feature, the rich chestnut crown, makes it relatively easy to distinguish from its close relatives within the *Arremon* ge...