AT A GLANCE
Common Name: Anjouan Scops Owl
Scientific Name: Otus capnodes
Category: Birds
Subcategory: Typical Owls
Size: Total body length: 7.9–8.7 in (20–22 cm); Wingspan: 16–18 in (40–46 cm)
Weight: 3.2–4.2 oz (90–120 g)
Lifespan: 8–12 years in undisturbed island cloud forest canopies
Diet: Nocturnal carnivore / Insectivore (beetles, moths, cicadas, small geckos, and spiders)
Habitat: Remnant primary evergreen cloud forest patches above 400 meters elevation
Range: Confined to a few fragmented forest pockets on Mount Ntringui, Anjouan Island
Conservation Status: Critically Endangered (IUCN Red List / Population under 400 pairs due to deforestation)

Overview

The Anjouan Scops Owl (Otus capnodes) is an enigmatic, critically endangered miniature nocturnal raptor found nowhere else on Earth except within tiny surviving remnants of cloud forest on Anjouan Island in the Comoro Archipelago. Long feared extinct after its initial discovery in 1886, it was miraculously rediscovered in 1992, clinging to survival on the mist-covered, precipitous volcanic crags of Mount Ntringui.

Biology and Physical Characteristics

Otus capnodes is a compact, dark-toned scops owl exhibiting two distinct plumage morphs: a deep sooty-brown morph and a rich rufous-cinnamon morph, both heavily mottled with charcoal streaks and vermiculations that resemble rough volcanic tree bark. It features prominent erectile ear tufts and piercing sulfur-yellow eyes encircled by dark facial disks. Its silent flight feathers allow it to ambush flying moths and canopy insects without a sound.

Behavior and Ecology

Strictly nocturnal, the Anjouan Scops Owl roosts during the day in high, moss-cloaked tree forks or natural cavities in old-growth hardwood trees. At dusk, it broadcasts a distinctive series of high-pitched, whistling territorial calls that resonate across deep river canyons. It hunts by sallying from elevated perches to snatch beetles and katydids from foliage, and depends upon ancient, hollow-bearing trees for nesting and raising its broods.

Conservation and Human Impact

Otus capnodes is on the knife-edge of extinction, listed as Critically Endangered by the IUCN. Anjouan has suffered catastrophic rates of deforestation, with over 80 percent of its native forest cleared for subsistence agriculture, vanilla cultivation, and ylang-ylang timber. Ongoing conservation programs by Dahari and the Comorian government work alongside local villages to establish agroforestry buffer zones and protect Mount Ntringui’s remaining primary watershed.

Interesting Factoid

Lost to science for more than a century and presumed completely extinct, the Anjouan Scops Owl was rediscovered in 1992 when biologists followed an eerie, repetitive whistling call echoing through a remote volcanic ravine.

Last updated: October 2026