AT A GLANCE
Common Name: Jerdon’s Courser
Scientific Name: Rhinoptilus bitorquatus
Category: Birds
Subcategory: Shorebirds
Size: Body length: 9.5–10.6 in (24–27 cm); Wingspan: 18–20 in (46–51 cm)
Weight: 4.5–6.0 oz (130–170 g)
Lifespan: 6–10 years in undisturbed scrub habitats
Diet: Insectivore (termites, ground beetles, ants, and nocturnal arthropods)
Habitat: Undisturbed semi-arid thorny scrub and open rocky gravel flats
Range: Highly restricted to the Sri Lankamalleswara Wildlife Sanctuary region, Andhra Pradesh, India
Conservation Status: Critically Endangered (IUCN Red List)

Overview

Jerdon’s Courser (Rhinoptilus bitorquatus) is one of the rarest and most legendary avian species on the planet. First described by surgeon-naturalist Thomas Jerdon in 1848, this secretive, ground-dwelling wader disappeared from scientific records for over eight decades and was widely believed extinct until a breathtaking nocturnal rediscovery in 1986 near Reddipalli, Andhra Pradesh. Adapted strictly to dry thorny scrub jungles of southeastern India, the courser survives as a twilight phantom whose extreme stealth and dwindling population place it at the center of global bird conservation efforts.

Biology and Physical Characteristics

The plumage of Jerdon’s courser provides masterful camouflage against sun-baked gravel and dry red earth. The upperparts are a warm sandy-brown, while the crown is crowned with deep blackish feathers bisected by a prominent pale buff supercilium. Its most diagnostic anatomical trait is a double white breast band separated by a rich rufous-chestnut collar across the lower neck. It possesses remarkably long, pale creamy-white legs engineered for high-speed cursorial sprinting across stony ground, large dark nocturnal eyes that gather sparse starlight, and a short, black-tipped yellow bill adapted for probing termite tunnels.

Behavior and Ecology

Unlike most members of the order Charadriiformes that frequent water margins, Jerdon’s courser is an obligate dry-land cursorial specialist that rarely flies unless aggressively flushed. Strictly nocturnal and crepuscular, the bird remains crouched motionless beneath thorny Acacia and Ziziphus bushes during the blistering heat of the day. At dusk, it emerges to hunt termites and ground beetles, using a characteristic ‘run-stop-peck’ foraging strategy. During breeding season, it utters a distinctive series of metallic, whistle-like ‘twick-too… twick-too’ calls that echo softly across the moonlit scrublands.

Conservation and Human Impact

Listed as Critically Endangered by the IUCN, Jerdon’s courser is teetering on the edge of extinction, with an estimated population numbering fewer than 250 mature individuals. Its hyper-specialized scrubland habitat has been severely fragmented by agricultural conversion, illegal cattle overgrazing, commercial stone quarrying, and irrigation canal excavation (such as the Telugu Ganga project). Intensive camera-trapping programs and acoustic monitoring arrays operated by the Bombay Natural History Society continue to track its critically small population within the Sri Lankamalleswara Wildlife Sanctuary.

Interesting Factoid

After being declared extinct for 86 consecutive years, Jerdon’s Courser was rediscovered in 1986 when a local bird trapper recognized its distinctive silhouette under a flashlight beam in the dead of night!

Last updated: October 2026

error: