Arremon costaricensis
The Costa Rican Brushfinch (Arremon costaricensis) is a striking member of the New World Sparrow family, Passerellidae, recently elevated to full species status from a subspecies of the Slaty-backed Brushfinch. This medium-sized brushfinch, typically measuring 16-18 cm (6.3-7.1 inches) and weighing 30-40 grams, boasts a visually distinctive appearance. Its head is marked by a prominent black crown bordered by a broad white supercilium, contrasting sharply with a black postocular stripe and a ...
This species primarily inhabits humid montane evergreen forests, cloud forests, and dense forest edges, typically at elevations ranging from 700 to 2000 meters. It strongly favors areas with a thick understory and abundant leaf litter.
The diet primarily consists of various invertebrates, including insects and spiders, supplemented by a smaller proportion of seeds and fallen fruits. It forages mostly by gleaning and scratching through leaf litter on the forest floor.
The Costa Rican Brushfinch is a generally secretive and terrestrial species, typically encountered singly or in pairs, though occasionally small family groups can be observed. They spend most of their time foraging actively on the forest floor, meticulously sifting through leaf litter with charac...
The Costa Rican Brushfinch is a resident species with a restricted geographic distribution, primarily found in the highlands of southern Costa Rica and western Panama. In Costa Rica, its range extends through the Talamanca Mountain range, including areas such as the Dota region and Cerro de la Mu...
Least Concern
- The Costa Rican Brushfinch was only recently recognized as a full species in 2010, having previously been considered a subspecies of the Slaty-backed Brushfinch (Arremon assimilis). - Despite its striking head pattern, its secretive nature means it is more often heard than seen, making its dist...