Scaly-throated Foliage-gleaner

How to find it

Look for it with mixed-species feeding flocks rather than searching for a single bird. Birders who see it in Costa Rica usually find it that way. Scan every level of the forest, because it works from understory to canopy. Learn the squeaky song and the dry squeak, since it can be hard to see: one party at Tapanti only heard it on the Waterfall Trail. A video record comes from the cabins and feeders area at Miriam's Quetzals in San Gerardo de Dota.

How to recognise it

Look first at the face. Adults have a wide buff eyering and eyebrow stripe, with a dark brown line behind the eye. That spectacled look is what the Spanish name, Trepamusgo de Anteojos, refers to.

The underparts are pale buff, with a scaly pattern on the throat and breast.

The upperparts turn richer rufous brown toward the back and tail. Overall the bird is a mix of brown, buff and rufous tones.

Males and females look alike, so there is no need to sort the sexes in the field.

What it sounds like

Recording: Niels Krabbe, CC BY-SA 4.0, source, read 5 Nov 2026.

Behaviour and diet

This is an acrobatic feeder. It clambers and hops along horizontal branches, picking prey from foliage, epiphytes and moss. It forages alone or in pairs and works through all forest levels, from understory to canopy.

Its habit of joining mixed-species flocks is the key to finding it. Around Monteverde, birders have noted it in a flock with tanagers, an Olive-striped Flycatcher and a Rufous Mourner. At Tapanti, a tour report describes an adult with two young following it in a mixed flock.

The only known nest, from the species in general, was in an old woodpecker hole lined with moss, with two eggs. Pairs are assumed to be monogamous.

Where it lives

In Costa Rica this foliage-gleaner mostly lives between about 800 and 1,800 m above sea level. It is fairly common in the subcanopy and edges of humid foothill and lower montane forest.

Records and bird lists place it in several highland and foothill areas: San Gerardo de Dota in San José province, Turrialba, the Cloudbridge Nature Reserve, Tapanti National Park in Cartago province, and the cloud forest around Monteverde.

Similar birds

It shares Costa Rican foothill forest with the Buff-fronted and Lineated Foliage-gleaners. One tour group at Tapanti could not tell the foliage-gleaners apart and tried playing the calls of all three species. The wide buff eyering and eyebrow stripe, with the scaly throat and breast, are the marks to check.

Names and lore in Costa Rica

Costa Rican sources call it Trepamusgo de Anteojos. Other Spanish names used elsewhere include ticotico de anteojos, hojarasquero de anteojos and breñero cejudo. Panama and Ecuador use limpiafronda goliescamosa.

Status and conservation

The official list of Costa Rican birds gives its status as R, resident, and the IUCN rates the species Least Concern.

Photography tips

Birders who see it in Costa Rica usually find it with mixed flocks, so stay with a flock rather than chasing one bird. It can be hard to see, and at Tapanti one party only heard it, so listen for the squeaks first.