The male is glossy purplish blue with fine white markings; the female is dark blue-black. Both have red faces and forage near the forest floor.
The male is glossy purplish-blue black with fine whitish vermiculations and a red face and rump. The female is glossy dark blue-black with a red face and lacks the pale markings.
Malay Crestless Firebacks inhabit closed-canopy lowland forest. At Ulu Sat in Kelantan, a male occurred on level, dimly lit ground beneath medium to large, relatively spaced trees.
Seven cameras were deployed in eastern Ulu Sat Forest Reserve in April–May 2023. At 09:43 on 17 May, one camera photographed a male. Four consecutive images documented one encounter, confirming its occurrence in the forest.
Trees around the location included an Artocarpus species. Barking deer, wild boar and a surili were also photographed at the same camera location. The fireback was one of several vertebrates using this patch of forest.
IUCN Red List · CR · Global
The IUCN’s global assessment published in 2022 lists this species of the Malay Peninsula and Sumatra as Critically Endangered. Lowland forest loss, fragmentation and hunting are major threats. Priorities include identifying occupied forest patches, obtaining robust population estimates and monitoring forest loss.