Field Guide
A closer look at the mammals, birds, and reptiles that shape Udawalawe’s grasslands, wetlands, and reservoir shores.
Elephas maximus maximus
Udawalawe is one of the most reliable places in Sri Lanka to observe Asian elephants in the wild. Family herds gather around the reservoir and grasslands, especially in the dry season when water and green forage concentrate animals near open clearings. Bulls may appear alone or in small bachelor groups, while matriarch-led herds move with calves through scrub and lakeshore corridors.
Panthera pardus kotiya
The Sri Lankan leopard is the park’s apex predator and a rare safari highlight. Sightings are uncommon because leopards are solitary, territorial, and often rest in dense cover during the heat of the day. Early and late drives give the best chance, especially when alarm calls from deer or langurs reveal a nearby cat.
Bubalus bubalis
Water buffalo are a familiar sight in Udawalawe’s wetlands and muddy pools. Herds cool themselves in wallows during hot midday hours and graze open flats near the reservoir. Their presence helps shape wetland edges used by birds and other grazers.
Udawalawe supports a rich bird community across grasslands, marshes, and the reservoir shoreline. Painted storks, egrets, herons, and many migrant waterbirds gather in shallow feeding bays, while woodland edges hold endemic and dry-zone specialists. Dawn is the most rewarding hour for both song and photography.
Crocodylus palustris
Mugger crocodiles inhabit the Udawalawe Reservoir and connecting waterways. They are often seen basking on muddy banks in the morning or late afternoon, sliding into deeper water when disturbed. Visitors should keep a respectful distance from shorelines where crocodiles rest.
Pavo cristatus
The Sri Lankan peafowl — the national bird — is commonly seen across Udawalawe’s open country. Males display iridescent trains during the breeding season, while peahens and chicks forage along jeep tracks and grassland edges. Early morning light brings both activity and colour.
Axis axis
Spotted deer (chital) form groups across Udawalawe’s grasslands and light woodland. They are often seen grazing in mixed herds and serve as an important prey species for leopards. Watch for sudden alarm calls — they can signal a nearby predator.
Macaca sinica
The toque macaque is endemic to Sri Lanka and frequently encountered in Udawalawe’s wooded edges and visitor areas. Troops forage for fruit, leaves, and insects, with mothers often carrying infants. Keep food packed away — feeding wildlife is harmful and prohibited.
Ketupa zeylonensis
Brown fish owls hunt along Udawalawe’s water margins, taking fish and other aquatic prey. They often roost quietly by day in large waterside trees and become active toward dusk. Patient scanning of shaded riverine branches can reveal a stocky silhouette and distinctive ear tufts.
Avifauna
From forest endemics to reservoir raptors — a field look at species you may encounter across Udawalawe’s scrub, woodland, and wetlands.
Lophotriorchis kienerii
A small forest raptor with a dark blackish hood and back, a white throat and breast heavily streaked in black, and rich chestnut-rufous underparts. Also called the rufous-bellied hawk-eagle, it is a rare and striking breeding resident of Sri Lanka’s dense wet-zone forests.
Acritillas indica
A bright songbird about 20 cm long, with yellow underparts, olive-green upperparts, and a clear yellow brow above a dark eye. It keeps to leafy cover in southern India’s and Sri Lanka’s wooded hills and is often found first by its loud calls.
Nisaetus cirrhatus
Also known as the crested hawk-eagle, this large Accipitridae raptor is a common resident of Sri Lanka’s forests and parks. Look for dark brown upperparts, a heavily streaked white breast, and a narrow floppy crest — plumage can vary to an almost all-dark morph.
Haliastur indus
A medium-sized raptor, also called the red-backed sea-eagle, with a clean white head, neck, and breast against a rich chestnut body and wings. An opportunistic scavenger and hunter of fish, crabs, frogs, and insects across tropical South and Southeast Asia.
Pellorneum fuscocapillus
Endemic to Sri Lanka, this secretive understory bird has cinnamon-orange underparts, an olive-brown back, and a darker brown cap. It lives in pairs, foraging through leaf litter for insects, and is heard more often than seen thanks to its melodious whistling calls.
Rubigula melanictera
A Sri Lanka endemic with olive-green upperparts, brilliant yellow underparts and throat, and a solid black head with no crest. Often moves in pairs or small groups through wet-zone forest and wooded gardens.
Icthyophaga leucogaster
A large diurnal raptor with a white head, breast, and underparts set against slate-grey wings. Females can reach about 90 cm with a wingspan up to 2.2 m. It hunts fish and other aquatic prey and ranges from India and Sri Lanka through Southeast Asia to Australia.
Spilornis cheela
A medium-sized tropical Asian raptor with dark brown upperparts, a barred underbody, a shaggy crest, and bright yellow bare skin around the eyes. Named for its diet of snakes and reptiles, and often announced by a loud two- or three-note whistle.
Dumetia hyperythra
A small understory babbler with an olive-brown back, tawny underside, white throat, and a stout bill. Sri Lanka’s subspecies phillipsi tends to have a paler belly and larger bill than mainland birds.
Pycnonotus luteolus
An olive-brown songbird with a pale whitish eyebrow and a bright yellow vent. It skulks in dense scrub across Sri Lanka and peninsular India and is far easier to hear — by its loud cheerful calls — than to see.
Pycnonotus cafer
Recognised by a short dark crest, dark brown scaly plumage, and a bright red vent under the tail. Common in gardens, open forest, and towns across southern Asia, feeding on fruit, nectar, and insects.
Dumetia atriceps
A small Old World babbler with a jet-black cap, warm chestnut upperparts, whitish underparts, and pale yellow eyes. Travels in noisy flocks near the ground in damp forests of Sri Lanka and India’s Western Ghats.
Prinia inornata
Also called the white-browed prinia, this small slender brown bird has a long graduated tail, pale underparts, and a clear pale supercilium.
Acridotheres tristis
A social, adaptable bird with a dark brown body, black hood, white wing patches in flight, and bright yellow bill, legs, and eye patch. Common in gardens, farmland, and open woodland across Sri Lanka.
Gallus lafayettii
Sri Lanka’s national bird (Wali Kukula), endemic to the island. Males show fiery orange-red and golden plumage, a dark purple-black tail, and a red comb with a yellow centre. They forage on the ground for seeds, fruit, and insects in forest and scrub.
Hypsipetes ganeesa
An elegant dark songbird of wet evergreen forest, with a charcoal-grey body, black crest, square tail, bright red bill, and orange-red feet. Feeds on fruit, nectar, and insects, and calls with squeaky whistles and cat-like mews.
Ichthyophaga ichthyaetus
A large water-edge raptor with a pale grey head, bright yellow eyes, dark brown upperparts, and a white belly. Strong curved talons help it grip fish; often seen at lakes, rivers, and parks such as Udawalawe, Yala, and Wilpattu.
Argya affinis
A common resident of Sri Lanka and southern India with dull grey-brown plumage, a pale yellowish bill, and pale eyes. Forages in noisy social groups near the ground in scrub, gardens, and farmland.
Pavo cristatus
The familiar peacock — adult males fan a spectacular train of eye-spotted upper tail coverts. Bright blue neck and head contrast with green, gold, and blue patterns across the display feathers.
