The Ceylon Hill Myna (Gracula ptilogenys, Blyth 1846) is one of Sri Lanka's most distinctive endemic birds — a glossy, deep-black myna with a sharp, far-carrying whistle that regularly stops hikers in their tracks. Though closely related to the more widespread Hill Myna (Gracula religiosa), this species is found nowhere else on earth, making it a priority sighting for birdwatchers visiting the island's montane forests.
How does the Ceylon Hill Myna differ from the Common Hill Myna?
At first glance the two species look similar: both are large, glossy black mynas with bright yellow facial wattles. The Ceylon Hill Myna is, however, slightly larger overall and carries only a single pair of wattles on its head, whereas Gracula religiosa has two pairs. This wattle arrangement is the clearest field mark when the birds are perched at close range.
The voice is equally distinctive. The Ceylon Hill Myna produces a repertoire of shrill, carrying calls — commonly transcribed as hyu, piau, and peeoo — delivered in a high-pitched, liquid whistle that echoes through the forest canopy. Experienced birders often locate the species by ear long before they spot it in the leafy upper storey.
Where does the Ceylon Hill Myna live?
The species is largely restricted to the wet-zone forests of Sri Lanka's central hills, occurring at altitudes of roughly 300 to 1,600 metres above sea level. This range takes in dense montane rainforest and submontane forest patches, particularly across the Knuckles, Rakwana, and Sinharaja hill complexes. The Sinharaja Forest Reserve — a UNESCO World Heritage site and one of the last substantial lowland rainforests in the wet zone — is among the most reliable locations in which to encounter this species.
Although the Ceylon Hill Myna is not as immediately endangered as some other Sri Lankan endemics, habitat loss through forest fragmentation remains the principal long-term threat. The bird is rarely recorded outside undisturbed or lightly disturbed mature forest.
What does the Ceylon Hill Myna eat?
Fruit forms the overwhelming bulk of the diet. The birds move through the upper canopy in search of fruiting trees, and small groups will converge on a productive tree in large numbers alongside other fruit-eating species. Figs and various forest berries are favoured, though the myna is an opportunistic feeder that will exploit whatever is seasonally abundant.
Unlike many ground-foraging birds, the Ceylon Hill Myna almost never descends to the forest floor. It is a true canopy specialist: most activity takes place in the highest branches of tall emergent trees, which makes prolonged observation a test of patience and a good pair of binoculars.
How do Ceylon Hill Mynas behave in the wild?
Outside of fruiting aggregations the birds typically move in pairs or small groups of up to about six individuals. The pair bond appears strong and the two birds of a pair often stay close together, calling back and forth through the canopy. When a particularly productive fruiting tree is located, however, loose congregations of a dozen or more may form temporarily before dispersing again.
The species is largely sedentary within its range, although local altitudinal movements linked to fruiting patterns have been noted by observers. It does not undertake long-distance migration.
When does the Ceylon Hill Myna breed?
There are two recognised breeding seasons each year. The first runs from March through May; the second, shorter season occurs in August and September. Nests are placed in natural hollows in large trees, typically between 7 and 15 metres above the ground — high enough to be largely inaccessible to most predators.
No nesting material is collected; the eggs are laid directly on bare wood inside the hollow. A typical clutch consists of two eggs, each measuring around 33 × 25 mm, with a pale greenish-blue ground colour lightly marked with spots or blotches. Both parents are believed to share incubation duties, though detailed studies of breeding biology remain limited.
Where are the best places to see the Ceylon Hill Myna in Sri Lanka?
Any mature wet-zone forest at mid elevation is potentially productive, but a handful of sites stand out for their accessibility and reliable sightings:
- Sinharaja Forest Reserve — the best-known location, with experienced local guides familiar with fruiting trees and regular myna territories.
- Knuckles Conservation Forest — less visited than Sinharaja, offering quieter birding conditions and excellent mid-elevation habitat.
- Horton Plains fringes — the forest edge below the plateau, accessible from Horton Plains National Park, occasionally yields records at the upper end of the species' altitudinal range.
- Makandawa Rainforest (Kithulgala) — relatively easy to reach from Colombo, with guided forest walks that regularly produce this species alongside other wet-zone endemics.
Early morning is consistently the most productive time: the birds call frequently and move actively through fruiting trees in the first two hours after dawn.
What other endemic birds might I see alongside the Ceylon Hill Myna?
The same wet-zone forest habitats that support the Ceylon Hill Myna also harbour a remarkable concentration of Sri Lankan endemics. Birders commonly encounter the Sri Lanka Blue Magpie, Crimson-fronted Barbet, Green-billed Coucal, and Serendib Scops Owl within the same forest patches. A dedicated birdwatching day in Sinharaja can yield more than a dozen endemic species in a single outing, making it one of the highest-return birdwatching destinations in Asia.
Tips for birdwatchers planning a Ceylon Hill Myna sighting
- Hire a local forest guide — they know which trees are currently fruiting and where the birds have been active in recent days.
- Wear muted colours; bright clothing can be enough to cause wary canopy birds to move off silently.
- Bring a binocular with at least 8× magnification and good light-gathering capability for the dim forest interior.
- Arrive at the forest entrance before dawn; the walk to prime habitat can take 30–45 minutes.
- Visit during the inter-monsoon periods (April–May and October) when forest conditions are fresh and fruiting activity is often high.
