Costa Rican Brushfinch

How to find it

Look low in dense undergrowth, bamboo and forest edges, and listen for the thin song. Because it forages quietly, faint chattering on the forest floor is a useful clue. At Las Cruces, a birding pair noticed such chattering on the Rio Java trail in older forest, scanned the ground and saw two brushfinches near two Orange-billed Sparrows. A dirt road through forest patches just east of San Vito is a known spot. One bird answered a short burst of playback, and on a 2025 tour a bird came almost into the open for a few seconds after a first playback. Patience matters, since a guided group in 2024 had to wait and sweat before finding a pair along a road near San Vito. On a trip we build around the south, this is a bird to give time to.

How to recognise it

Adults have a black head with a gray stripe down the middle of the crown and a gray eyebrow. The back, wings and tail are olive-green. The throat is white with a narrow gray band below it, and the face looks like a black mask. Males and females look alike. Adults measure about 17 to 20 cm long, and the overall impression is of a sturdy finch.

Juveniles are easy to tell apart: the head is sooty black instead of jet black, the breast is gray and the belly is buff.

Behaviour and diet

This is a skulker that forages on or near the ground, eating insects and seeds. It lives alone or in pairs, and it is easy to overlook because it forages so quietly in the undergrowth.

It breeds between February and September. The nest is a cup of plant fibers in dense vegetation, about 2 to 4 m up, and the clutch is two eggs.

Where it lives

The Costa Rican Brushfinch lives in the undergrowth of humid tropical forest, and also uses forest edges, bamboo thickets and gardens close to its main habitat. It occurs in humid forest and dense second growth.

In Costa Rica it ranges from about 300 to 1,200 m elevation. It is found in the Pacific foothills from central Puntarenas Province and northern San José Province, continuing south into western Panama's Chiriquí Province.

Similar birds

It was once treated as part of the stripe-headed brushfinch, and was split into its own species around 2010 because of differences in genetics, song and plumage. All birds in that former group look alike, with olive upperparts, a white throat and a lot of black on the head. In this species the pale stripe over the eye is gray.

Names and lore in Costa Rica

The AOCR name used in Costa Rica is Saltón Costarricense. Spanish sources also call it Cerquero Costarricense, and Panama uses Matorralero Costarricense. An English alternative name is Gray-striped Brushfinch.

Status and conservation

The AOCR list classes it as a resident regional endemic (R-END), and the IUCN rates it Least Concern.

Photography tips

Be ready for a bird that stays low and in shade. A short burst of playback has drawn a bird into view on some trips, where it came almost into the open for a few seconds, so keep the camera ready and the approach quiet.