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The birdCrested Partridge (Rollulus rouloul)
Crested Partridge (Rollulus rouloul), Tambunan, Sabah, Borneo 1 by tcager, via Wikimedia Commons, licensed under CC0
gamebird

Crested Partridge

Rollulus rouloul

A small Southeast Asian rainforest partridge whose male sports a bright red, bushy, hair-like crest atop glossy dark-green body plumage, while the female glows a striking grass-green.

Feather type
Glossy body feathers topped by a bushy, hair-like crest
Colours
Glossy green-black, bright red, and chestnut
Bird size
Small, ~24-27 cm

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Overview

The Crested Partridge, also called the roul-roul, is a small, brightly colored gamebird of Southeast Asian rainforests. Males have a bushy, hair-like crest of bright red feathers atop the crown, set against glossy dark green-black body plumage and a chestnut cap band, while females show an entirely different but equally striking plumage of overall bright grass-green with a much shorter crest.

Identifying the Feather

  • Crest (male): a dense tuft of bright red, hair-like feathers standing up from the crown, unlike the flatter crests of most gamebirds.
  • Body (male): glossy dark green-black, with a chestnut band across the forecrown below the red crest.
  • Body (female): bright, uniform grass-green plumage, strikingly different from the male's dark tones.
  • Bill and legs: bright red in both sexes, matching or complementing the crest color.
  • Overall texture: feathers appear glossy and smooth, giving both sexes a vivid, almost lacquered sheen.

Plumage & Molt

Males and females differ dramatically in color, with males dark and crested in red, and females a uniform bright green with a smaller crest. Juveniles resemble females but are duller. A complete molt occurs annually.

Habitat & Range

Crested Partridge inhabit lowland tropical rainforest across the Malay Peninsula, Sumatra, and Borneo. The species is non-migratory, remaining resident within undisturbed forest habitat and generally avoiding degraded or open areas.

Behavior & Field Notes

This species forages on the forest floor for fallen fruit, seeds, and invertebrates, typically in small groups that move quietly through the undergrowth. It is shy and rarely seen in the open, retreating quickly into dense cover when disturbed. Nests are shallow ground scrapes hidden under leaf litter or low vegetation. Calls are soft, low, cooing notes used to maintain contact within the group.

Frequently asked questions

What does the male Crested Partridge's crest look like?

A dense tuft of bright red, hair-like feathers standing up from the crown, quite different from the flatter crests of most gamebirds.

Why do male and female Crested Partridge look so different?

Males are dark green-black with a red crest, while females are a uniform bright grass-green, one of the more dramatic sex differences among gamebirds.

Where does the Crested Partridge live?

Lowland tropical rainforest across the Malay Peninsula, Sumatra, and Borneo.

Is the Crested Partridge often seen in the open?

No, it is shy and typically stays hidden in dense forest undergrowth.