All species › Woodpeckers and allies › Toucans › Crimson-rumped Toucanet

Crimson-rumped Toucanet | Aulacorhynchus haematopygus

Roodstuitarassari | Tucanete lomirrojo | Tucaninho-de-uropígio-vermelho

The Crimson-rumped Toucanet is a green toucanet of montane forest in Colombia and western Ecuador. The red rump and the dark, wine-red bill separate it from the other green toucanets in the north of the guide area. It lives in pairs or small groups in the canopy.

Crimson-rumped Toucanet (Aulacorhynchus haematopygus)
Photo: Joseph C Boone — CC BY-SA 4.0 · Wikimedia Commons

Voice

A long, sustained series of hoarse, croaking or barking notes, such as kwek kwek kwek.

Listen: SongXC923637

Recording: JUAN ANTONIO ALONSO DE JUAN — CC BY 4.0 · xeno-canto

Identification

37–41 cm. Mainly green, with a bright red rump, bare blue skin around the eye and a bluish tinge on the brow and breast. The tail feathers have chestnut tips; the undertail coverts are green. The bill is dark wine-red with black and has a narrow white band at the base. The sexes are alike; juveniles are duller.

Confusion species

Southern Emerald Toucanet Aulacorhynchus albivitta has a green rump, chestnut undertail coverts and yellow on the upper mandible. Chestnut-tipped Toucanet Aulacorhynchus derbianus lives on the eastern slope, further south, and has a green rump. Groove-billed Toucanet Aulacorhynchus sulcatus in northern Colombia has a mainly yellow bill and a green rump.

Habitat

Humid montane forest, cloud forest, forest edges and secondary forest, at roughly 1000 to 2500 m, locally lower in western Ecuador. It eats mainly fruit, also insects and eggs and nestlings of other birds. It nests in a tree cavity.

Range and movements

In Colombia in the three Andean ranges and in the Serranía de Perijá. In Ecuador on the western slope of the Andes. Absent from Peru, Bolivia and the Galápagos. Outside the guide area in north-western 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

Along forest edges and roads through cloud forest on the western slope in Ecuador, such as around Mindo and Tandayapa, often at fruiting trees or fruit feeders.

Conservation status

Least Concern. The species tolerates secondary forest and forest edges, but depends on the survival of montane forest.

Scientific name

Aulacorhynchus haematopygus | (Gould, 1835)

Gould described the species in 1835 as Pteroglossus haematopygus; because it was later moved to another genus, the author and year stand in brackets. The genus Aulacorhynchus was introduced in 1835 by Gould. The genus name comes from Greek aulax, 'furrow', and rhunkhos, 'bill'. The species name comes from Greek haima, 'blood', and pugē, 'rump', for the red rump. The specimen the first description was based on came from Concordia, Antioquia, Colombia.