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Dusky-capped Greenlet | Pachysylvia hypoxantha

Bruinvoorhoofdvireo | Verdillo ventriamarillo | Vite-vite-de-barriga-amarela

The Dusky-capped Greenlet is a small greenlet of the canopy of western Amazonia, with a dull brown cap and yellow underparts. It is a regular member of mixed flocks high in the forest, where it makes itself heard by its repeated song.

Dusky-capped Greenlet (Pachysylvia hypoxantha)
Photo: Dominic Sherony — CC BY-SA 2.0 · Wikimedia Commons

Voice

A quick, repeated phrase of a few clear notes, often sung in series one after another from the canopy. Calls are nasal.

Listen: SongXC1186208

Recording: JAYRSON ARAUJO DE OLIVEIRA — CC BY-NC-SA 4.0 · xeno-canto

Identification

11.5 cm, with a fairly short tail and a thin, pointed bill. The forehead and crown are dull brown to greyish brown, the rest of the upperparts olive-green. The eye is dark. The throat is pale grey to whitish, the rest of the underparts yellow, olive on the flanks. The sexes are alike.

Confusion species

Lemon-chested Greenlet Hylophilus thoracicus has a grey crown, a pale eye and only a yellow band across the breast. Buff-cheeked Greenlet Pachysylvia muscicapina has buff-brown cheeks and greyish underparts. Ochre-crowned Greenlet Tunchiornis ochraceiceps lives in the understorey and has a pale eye and an ochre-brown forehead.

Habitat

Canopy and edges of humid lowland forest, mainly terra firme, also várzea and tall secondary forest, up to about 1000 m in the foothills. It searches the foliage for insects and spiders, almost always in mixed flocks. Little is known about the nest.

Where the bird is most at home, classified by the vegetation units of the Andes and the west coast.

Range and movements

Colombia: in the Amazonian lowlands in the south-east. Ecuador: in the eastern lowlands. Peru: in the Amazonian lowlands east of the Andes. Bolivia: in the northern lowlands. Absent from the Galápagos. Outside the guide area in western Amazonian Brazil and southern Venezuela.

  • Resident
  • dark = core range, pale = thinly spread
Density map from the occurrence records of GBIF (2006-10-01 – 2026-09-30), counted per 1.41° grid cell and per month and divided by all bird records in that same cell — so the number of birdwatchers does not shape the picture. Colour depth follows that share and fades out gradually, so the map does not follow national borders. Country outlines: Natural Earth (public domain).

How and when to look

From a canopy tower or along an open forest edge in the eastern lowlands, watch mixed flocks in the canopy; among the tanagers moves a small yellow bird with a brownish cap.

Conservation status

Least Concern. Widespread in a large, mostly intact forest area.

Scientific name

Pachysylvia hypoxantha | (Pelzeln, 1868) (GBIF: Hylophilus hypoxanthus)

Pelzeln described the species in 1868 as Hylophilus hypoxanthus; because it was later moved to another genus, the author and year stand in brackets. The genus Pachysylvia was introduced in 1850 by Bonaparte. The genus name comes from Greek pakhus, 'large, stout', and Sylvia, the warbler genus. The species name comes from Greek hupo, 'below', and xanthos, 'yellow': 'yellow below'. The specimen the first description was based on came from Rio Içana and Rio Uaupés, upper Rio Negro, Brazil.