Sri Lanka is a tropical island situated close to the southern tip of India. The bird life of Sri Lanka is very rich for its size and more than 500 species have been recorded. In addition to the many resident birds, a considerable number of migratory species winter in the country to escape their northern breeding grounds.
35 species are confirmed as endemic,[1] the latest addition being the Sri Lanka shama, which previously considered as a subspecies of the white-rumped shama. The other resident species are also found in the nearby Indian mainland, but over 80 have developed distinct Sri Lankan races. Some of these races are very different in their plumage characteristics from the related forms in India. 26 species are globally threatened.
Bird distribution in Sri Lanka is largely determined by its climatic zones. The dry zone is largest of the three, covering more than half of the island, with a prolonged dry and hot period and only one monsoon (the north east monsoon from October to January).
The wet zone, with two monsoons, is in the south western quarter of the island, where the few remaining rain forests are found and humidity is high.
The central hill zone rises to over 2450 m (8-10,000 ft) and has a cool temperate climate. Most of the 34 endemic species are confined to the wet and the hill zones, with only a few extending into the dry zone as well.
The family Anatidae includes the ducks and most duck-like waterfowl, such as geese and swans. These birds are adapted to an aquatic existence with webbed feet, flattened bills, and feathers that are excellent at shedding water due to an oily coating.[4]
Flamingos are gregarious wading birds, usually 3 to 5 feet (0.9 to 1.5 m) tall, found in both the Western and Eastern Hemispheres. Flamingos filter-feed on shellfish and algae. Their oddly shaped beaks are specially adapted to separate mud and silt from the food they consume and, uniquely, are used upside-down.
Grebes are small to medium-sized diving birds. They breed on fresh water, but often visit the sea whilst migrating and in winter. They have lobed toes and are excellent swimmers and divers; however, their feet are placed far back on their bodies, making them quite ungainly on land.
The family Cuculidae includes cuckoos, roadrunners and anis. These birds are of variable size with slender bodies, long tails and strong legs. Many are brood parasites.
The frogmouths are a group of nocturnal birds related to the nightjars. They are named for their large flattened hooked bill and huge frog-like gape, which they use to take insects.
Nightjars are medium-sized nocturnal birds that usually nest on the ground. They have long wings, short legs and very short bills. Most have small feet, of little use for walking, and long pointed wings. Their soft plumage is camouflaged to resemble bark or leaves.
Swifts are small birds which spend the majority of their lives flying. These birds have very short legs and never settle voluntarily on the ground, perching instead only on vertical surfaces. Many swifts have long swept-back wings which resemble a crescent or boomerang.
The treeswifts, or crested swifts, are closely related to the true swifts. They differ from the other swifts in that they have crests, long forked tails and softer plumage.
Rallidae is a large family of small to medium-sized birds which includes the rails, crakes, coots and gallinules. Typically they inhabit dense vegetation in damp environments near lakes, swamps or rivers. In general they are shy and secretive birds, making them difficult to observe. Most species have strong legs and long toes which are well adapted to soft uneven surfaces. They tend to have short, rounded wings and to be weak fliers.
Thick-knees are a group of largely tropical waders in the family Burhinidae. They are found worldwide within the tropical zone, with some species also breeding in temperate Europe and Australia. They are medium to large waders with strong black or yellow-black bills, large yellow eyes and cryptic plumage. Despite being classed as waders, most species have a preference for arid or semi-arid habitats.
Recurvirostridae is a family of large wading birds, which includes the avocets and stilts. The avocets have long legs and long up-curved bills. The stilts have extremely long legs and long, thin, straight bills.
The family Charadriidae includes the plovers, dotterels and lapwings. They are small to medium-sized birds with compact bodies, short, thick necks and long, usually pointed, wings. They are found in open country worldwide, mostly in habitats near water.
The jacanas are a group of tropical waders in the family Jacanidae. They are found throughout the tropics. They are identifiable by their huge feet and claws which enable them to walk on floating vegetation in the shallow lakes that are their preferred habitat.
Scolopacidae is a large diverse family of small to medium-sized shorebirds including the sandpipers, curlews, godwits, shanks, tattlers, woodcocks, snipes, dowitchers and phalaropes. The majority of these species eat small invertebrates picked out of the mud or soil. Variation in length of legs and bills enables multiple species to feed in the same habitat, particularly on the coast, without direct competition for food.
The crab-plover is related to the waders. It resembles a plover but with very long grey legs and a strong heavy black bill similar to a tern. It has black-and-white plumage, a long neck, partially webbed feet and a bill designed for eating crabs.
Glareolidae is a family of wading birds comprising the pratincoles, which have short legs, long pointed wings and long forked tails, and the coursers, which have long legs, short wings and long, pointed bills which curve downwards.
The family Stercorariidae are, in general, medium to large birds, typically with grey or brown plumage, often with white markings on the wings. They nest on the ground in temperate and arctic regions and are long-distance migrants.
Laridae is a family of medium to large seabirds, the gulls and terns. Gulls are typically grey or white, often with black markings on the head or wings. They have stout, longish bills and webbed feet. Terns are a group of generally medium to large seabirds typically with grey or white plumage, often with black markings on the head. Most terns hunt fish by diving but some pick insects off the surface of fresh water. Terns are generally long-lived birds, with several species known to live in excess of 30 years.
Tropicbirds are slender white birds of tropical oceans, with exceptionally long central tail feathers. Their heads and long wings have black markings.[5]
Southern storm-petrels are small birds which spend most of their lives at sea, coming ashore only to breed. They feed on planktonic crustaceans and small fish picked from the surface, typically while hovering or pattering across the water. Their flight is fluttering and sometimes bat-like.[6]
Northern storm-petrels are small birds which spend most of their lives at sea, coming ashore only to breed. They feed on planktonic crustaceans and small fish picked from the surface, typically while hovering or pattering across the water. Their flight is fluttering and sometimes bat-like.[6]
The procellariids are the main group of medium-sized "true petrels", characterised by united nostrils with medium septum and a long outer functional primary.[6]
Storks are large, long-legged, long-necked, wading birds with long, stout bills. Storks are virtually mute, but bill-clattering is an important mode of communication at the nest. Their nests can be large and may be reused for many years. Many species are migratory.[7]
Frigatebirds are large seabirds usually found over tropical oceans. They are large, black and white or completely black, with long wings and deeply forked tails. The males have coloured inflatable throat pouches. They do not swim or walk and cannot take off from a flat surface. Having the largest wingspan-to-body-weight ratio of any bird, they are essentially aerial, able to stay aloft for more than a week.[5] None are resident.
Anhingas or darters are often called "snake-birds" because they have long thin necks, which gives a snake-like appearance when they swim with their bodies submerged. The males have black and dark-brown plumage, an erectile crest on the nape, and a larger bill than the female. The females have much paler plumage, especially on the neck and underparts. The darters have completely webbed feet and their legs are short and set far back on the body. Their plumage is somewhat permeable, like that of cormorants, and they spread their wings to dry after diving.[5]
Phalacrocoracidae is a family of medium to large coastal, fish-eating seabirds that includes cormorants and shags. Plumage colouration varies; the majority of species have mainly dark plumage, but some are pied black and white, and a few are more colourful.[5]
Pelicans are large water birds with a distinctive pouch under their beak. As with other members of the order Pelecaniformes, they have webbed feet with four toes.[5]
The family Ardeidae contains the bitterns, herons and egrets. Herons and egrets are medium to large wading birds with long necks and legs. Bitterns tend to be shorter necked and more wary. Unlike other long-necked birds such as storks, ibises and spoonbills, members of this family fly with their necks retracted.[7]
Threskiornithidae is a family of large terrestrial and wading birds which comprises the ibises and spoonbills. Its members have long, broad wings with 11 primary and about 20 secondary flight feathers. They are strong fliers and, despite their size and weight, very capable soarers.[7]
The family Pandionidae contains only one species, the osprey. The osprey is a medium-large raptor which is a specialist fish-eater with a worldwide distribution.
Accipitridae is a family of birds of prey, which includes hawks, eagles, kites, harriers and Old World vultures. These birds have powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons and keen eyesight.
The typical owls are small to large solitary nocturnal birds of prey. They have large forward-facing eyes and ears, a hawk-like beak and a conspicuous circle of feathers around each eye called a facial disk.
The family Trogonidae includes trogons and quetzals. Found in tropical woodlands worldwide, they feed on insects and fruit, and their broad bills and weak legs reflect their diet and arboreal habits. Although their flight is fast, they are reluctant to fly any distance. Trogons have soft, often colourful, feathers with distinctive male and female plumage.
Hornbills are a group of birds whose bill is shaped like a cow's horn, but without a twist, sometimes with a casque on the upper mandible. Frequently, the bill is brightly coloured.
The bee-eaters are a group of near passerine birds in the family Meropidae. Most species are found in Africa but others occur in southern Europe, Madagascar, Australia and New Guinea. They are characterised by richly coloured plumage, slender bodies and usually elongated central tail feathers. All are colourful and have long downturned bills and pointed wings, which give them a swallow-like appearance when seen from afar.
Rollers resemble crows in size and build, but are more closely related to the kingfishers and bee-eaters. They share the colourful appearance of those groups with blues and browns predominating. The two inner front toes are connected, but the outer toe is not.
The Asian barbets are plump birds, with short necks and large heads. They get their name from the bristles which fringe their heavy bills. Most species are brightly coloured.
Woodpeckers are small to medium-sized birds with chisel-like beaks, short legs, stiff tails and long tongues used for capturing insects. Some species have feet with two toes pointing forward and two backward, while several species have only three toes. Many woodpeckers have the habit of tapping noisily on tree trunks with their beaks.
Characteristic features of parrots include a strong curved bill, an upright stance, strong legs, and clawed zygodactyl feet. Many parrots are vividly coloured, and some are multi-coloured. In size they range from 8 cm (3.1 in) to 1 m (3.3 ft) in length. Old World parrots are found from Africa east across south and southeast Asia and Oceania to Australia and New Zealand.
Pittas are medium-sized by passerine standards and are stocky, with fairly long, strong legs, short tails and stout bills. Many are brightly coloured. They spend the majority of their time on wet forest floors, eating snails, insects and similar invertebrates.
The cuckooshrikes are small to medium-sized passerine birds. They are predominantly greyish with white and black, although some species are brightly coloured.
The Vangidae comprises a group of often shrike-like medium-sized birds distributed from Asia to Africa. Many species in this family were previously classified elsewhere in other families.
The ioras are bulbul-like birds of open forest or thorn scrub, but whereas that group tends to be drab in colouration, ioras are sexually dimorphic, with the males being brightly plumaged in yellows and greens.
The drongos are mostly black or dark grey in colour, sometimes with metallic tints. They have long forked tails, and some Asian species have elaborate tail decorations. They have short legs and sit very upright when perched, like a shrike. They flycatch or take prey from the ground.
Shrikes are passerine birds known for their habit of catching other birds and small animals and impaling the uneaten portions of their bodies on thorns. A typical shrike's beak is hooked, like a bird of prey.
Most of the species of this small family are found in Africa, though a few inhabit tropical Asia. They are not closely related to other birds called "flycatchers".
The Paridae are mainly small stocky woodland species with short stout bills. Some have crests. They are adaptable birds, with a mixed diet including seeds and insects.
Larks are small terrestrial birds with often extravagant songs and display flights. Most larks are fairly dull in appearance. Their food is insects and seeds.
The Cisticolidae are warblers found mainly in warmer southern regions of the Old World. They are generally very small birds of drab brown or grey appearance found in open country such as grassland or scrub.
The members of this family are usually rather large for "warblers". Most are rather plain olivaceous brown above with much yellow to beige below. They are usually found in open woodland, reedbeds, or tall grass. The family occurs mostly in southern to western Eurasia and surroundings, but it also ranges far into the Pacific, with some species in Africa.
Locustellidae are a family of small insectivorous songbirds found mainly in Eurasia, Africa, and the Australian region. They are smallish birds with tails that are usually long and pointed, and tend to be drab brownish or buffy all over.
The family Hirundinidae is adapted to aerial feeding. They have a slender streamlined body, long pointed wings and a short bill with a wide gape. The feet are adapted to perching rather than walking, and the front toes are partially joined at the base.
Bulbuls are medium-sized songbirds. Some are colourful with yellow, red or orange vents, cheeks, throats or supercilia, but most are drab, with uniform olive-brown to black plumage. Some species have distinct crests.
Leaf warblers are a family of small insectivorous birds found mostly in Eurasia and ranging into Wallacea and Africa. The species are of various sizes, often green-plumaged above and yellow below, or more subdued with greyish-green to greyish-brown colours.
The members of this family are found throughout Africa, Asia, and Polynesia. Their taxonomy is in flux, and some authorities place some genera in other families.[15]
The family Sylviidae is a group of small insectivorous passerine birds. They mainly occur as breeding species, as the common name implies, in Europe, Asia and, to a lesser extent, Africa. Many species are difficult to identify by appearance, but many have distinctive songs.
The white-eyes are small and mostly undistinguished, their plumage above being generally some dull colour like greenish-olive, but some species have a white or bright yellow throat, breast or lower parts, and several have buff flanks. As their name suggests, many species have a white ring around each eye.
These small to medium-sized songbirds have soft fluffy plumage but are otherwise rather diverse. Members of the genus Illadopsis are found in forests, but some other genera are birds of scrublands.
The members of this family are diverse in size and colouration, though those of genus Argya tend to be brown or greyish. The family is found in Africa, India, and southeast Asia.
Nuthatches are small woodland birds. They have the unusual ability to climb down trees head first, unlike other birds which can only go upwards. Nuthatches have big heads, short tails and powerful bills and feet.
Starlings are small to medium-sized passerine birds. Their flight is strong and direct and they are very gregarious. Their preferred habitat is fairly open country. They eat insects and fruit. Plumage is typically dark with a metallic sheen.
The thrushes are a group of passerine birds that occur mainly in the Old World. They are plump, soft plumaged, small to medium-sized insectivores or sometimes omnivores, often feeding on the ground. Many have attractive songs.
Old World flycatchers are a large group of small passerine birds native to the Old World. They are mainly small arboreal insectivores. The appearance of these birds is highly varied, but they mostly have weak songs and harsh calls.
The sunbirds and spiderhunters are very small passerine birds which feed largely on nectar, although they will also take insects, especially when feeding young. Flight is fast and direct on their short wings. Most species can take nectar by hovering like a hummingbird, but usually perch to feed.
The weavers are small passerine birds related to the finches. They are seed-eating birds with rounded conical bills. The males of many species are brightly coloured, usually in red or yellow and black, some species show variation in colour only in the breeding season.
The estrildid finches are small passerine birds of the Old World tropics and Australasia. They are gregarious and often colonial seed eaters with short thick but pointed bills. They are all similar in structure and habits, but have wide variation in plumage colours and patterns.
Sparrows are small passerine birds. In general, sparrows tend to be small, plump, brown or grey birds with short tails and short powerful beaks. Sparrows are seed eaters, but they also consume small insects.
Motacillidae is a family of small passerine birds with medium to long tails. They include the wagtails, longclaws and pipits. They are slender, ground feeding insectivores of open country.
Finches are seed-eating passerine birds, that are small to moderately large and have a strong beak, usually conical and in some species very large. All have twelve tail feathers and nine primaries. These birds have a bouncing flight with alternating bouts of flapping and gliding on closed wings, and most sing well.
The emberizids are a large family of passerine birds. They are seed-eating birds with distinctively shaped bills. Many emberizid species have distinctive head patterns.
^Madge, Steve; Burn, Hilary (1988). Wildfowl: An Identification Guide to the Ducks, Geese and Swans of the World (Helm Identification Guides). Christopher Helm. ISBN0-7470-2201-1.
^ abcdefHarrison, Peter; Peterson, Roger Tory (1991). Seabirds: A Complete Guide to the Seabirds of the World (Helm Identification Guides). Christopher Helm Publishers Ltd. ISBN0-7136-3510-X.
^ abcOnley, Derek; Scofield, Paul (2007). Albatrosses, Petrels and Shearwaters of the World (Helm Field Guides). Christopher Helm Publishers Ltd. ISBN978-0-7136-4332-9.
^ abcWalters, Michael P. (1980). Complete Birds of the World. David & Charles PLC. ISBN0-7153-7666-7.
^de Silva Wijeratne, Gehan; Warakagoda, Deepal; de Zylva, T.S.U. (2007). "Species description". A Photographic Guide to Birds of Sri Lanka. New Holland Publishers (UK) Ltd. p. 37. ISBN978-1-85974-511-3.
^Gill, F. and D. Donsker (Eds). 2019. IOC World Bird List (v 9.2). Doi 10.14344/IOC.ML.9.2. http://www.worldbirdnames.org/ retrieved 22 June 2019.
Collinson, Martin (June 2006). "Splitting headaches? Recent taxonomic changes affecting the British and Western Palaearctic lists". British Birds. 99: 306–323.
Further reading
A Field Guide to the Birds of Sri Lanka by John Harrison and Tim Worfolk