See text The crimson-rumped toucanet (Aulacorhynchus haematopygus) is a near-passerine bird in the toucan family Ramphastidae.

Adults of both subspecies are mostly green with a gold gloss to the nape and upper back, a red rump, chestnut tips on the central two or three pairs of tail feathers, and bare orange-brown skin around the dark eye.

[4] The nominate subspecies of crimson-rumped toucanet is found from western Venezuela's Serranía del Perijá south on both slopes of the Andes through northern and central Colombia to its southwest.

[4] The crimson-rumped toucanet's main breeding season spans from January to May but can begin as early as November in southern Colombia and Ecuador.

In captivity the clutch size is up to four eggs, the incubation period 16 to 17 days, and the time to fledging about four to five weeks after hatch.

The crimson-rumped toucanet's song is a "[s]eries of variable, gruff, barking notes, 'daakk' to 'gggruk'" and is sung by both sexes, sometimes in duet.