Bulwer’s Pheasant

Birds > Galliformes

AT A GLANCE

  • Common Name: Bulwer’s Pheasant
  • Scientific Name: Lophura bulweri
  • Category: Birds
  • Subcategory: Galliformes
  • Range: Island of Borneo, strictly endemic to the central mountain interior across Malaysian Borneo (Sarawak and Sabah), Indonesian Borneo (Kalimantan), and Brunei
  • Habitat Type: Primary submontane and lower montane tropical rainforests, hill dipterocarp forests, and steep forested valleys between 300 and 1,500 meters elevation
  • IUCN Red List Status: Vulnerable
  • Lifespan: 10 to 15 years
  • Diet: Omnivorous (fallen jungle fruits, seeds, ants, termites, worms, and small invertebrates scratched from forest leaf litter)
  • Average Size/Weight: Total length 75 to 80 cm (males), 45 to 55 cm (females); weight 1.2 to 1.6 kg
  • Key Defining Feature: Breathtaking Bornean montane pheasant with glossy black plumage, bright crimson legs, an enormous snow-white curved tail, and colossal electric-cobalt-blue facial wattles that inflate into long horns

Overview

Bulwer’s Pheasant (Lophura bulweri), also known as the White-tailed Gallopheasant, is one of the most magnificent, elusive, and dramatically ornamented gamebirds on the planet. Strictly endemic to the rugged, montane heart of Borneo, this rare pheasant belongs to the family Phasianidae. Renowned for its otherworldly courtship display, the male transforms himself from an elegant black jungle bird into an astonishing, glowing sculpture of pure white tail plumes and massive, inflatable, electric cobalt-blue facial wattles that look like bright neon horns.

Biology and Physical Characteristics

Lophura bulweri exhibits dramatic sexual dimorphism. Females are a cryptic, warm chestnut-brown with fine vermiculations and a small patch of blue facial skin. Males are magnificent: their body plumage is deep midnight-black with gleaming blue-purple spangles on the breast and crimson legs. The male’s tail consists of 30 to 32 extraordinary, curved, snow-white feathers that form an arching, fountain-like crescent. Surrounding the face are expansive, bare skin wattles of an intense, luminescent cobalt-blue; during display, blood and fluids engorge these wattles, causing two long, pointed blue horns to shoot upwards above the head while two large lobes drop down past the throat.

Behavior and Ecology

Bulwer’s Pheasants are shy, terrestrial forest nomads that wander extensively through hill dipterocarp forests in search of mast-fruiting trees. When a male courts a female, he performs an unforgettable, theatrical display: he drops his head to the ground, spreads his colossal snow-white tail into a wide, luminous circular fan that completely conceals his black body from behind, inflates his electric-blue facial wattles to three times their normal size, and rushes toward the female like a glowing, mythological creature.

Conservation and Human Impact

Bulwer’s Pheasant is listed as Vulnerable on the IUCN Red List. It has suffered severe, rapid population declines across Borneo caused by commercial logging of hill dipterocarp forests, forest fires, road building, and targeted snare hunting. It is legally protected in Sabah and Sarawak and finds crucial refuge in large wilderness reserves like Danum Valley and Betung Kerihun.

Interesting Factoid

During courtship, the male Bulwer’s Pheasant inflates his face wattles into giant electric-blue horns that stretch several inches long, while opening his bright white tail into a glowing wall of feathers that completely hides his body.

error: