List of birds of Hong Kong explained

This is a list of the bird species recorded in Hong Kong. The avifauna of Hong Kong include a total of 599 species, of which 12 have been introduced by humans.

This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the Hong Kong Bird List published by Hong Kong Bird Watching Society. Supplemental updates follow The Clements Checklist of Birds of the World, 2022 edition. The family accounts at the beginning of each heading reflect this taxonomy, as do the species counts found in each family account. Introduced and accidental species are included in the total counts for Hong Kong.

The following tags have been used to highlight several categories. The commonly occurring native species do not fall into any of these categories.


Ducks, geese, and waterfowl

Order: AnseriformesFamily: Anatidae

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.

Pheasants, grouse, and allies

Order: GalliformesFamily: Phasianidae

The Phasianidae are a family of terrestrial birds. In general, they are plump (although they vary in size) and have broad, relatively short wings.

Grebes

Order: PodicipediformesFamily: Podicipedidae

Grebes are small to medium-large freshwater diving birds. They have lobed toes and are excellent swimmers and divers. However, they have their feet placed far back on the body, making them quite ungainly on land.

Pigeons and doves

Order: ColumbiformesFamily: Columbidae

Pigeons and doves are stout-bodied birds with short necks and short slender bills with a fleshy cere.

Cuckoos

Order: CuculiformesFamily: Cuculidae

The family Cuculidae includes cuckoos, roadrunners and anis. These birds are of variable size with slender bodies, long tails and strong legs. The Old World cuckoos are brood parasites.

Nightjars

Order: CaprimulgiformesFamily: Caprimulgidae

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

Order: ApodiformesFamily: Apodidae

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.

Rails, gallinules, and coots

Order: GruiformesFamily: Rallidae

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.

Cranes

Order: GruiformesFamily: Gruidae

Cranes are large, long-legged and long-necked birds. Unlike the similar-looking but unrelated herons, cranes fly with necks outstretched, not pulled back. Most have elaborate and noisy courting displays or "dances".

Thick-knees

Order: CharadriiformesFamily: Burhinidae

The thick-knees, also known as dikkops or stone-curlews, consist of species within the family Burhinidae, and are found throughout the tropical and temperate parts of the world.

Stilts and avocets

Order: CharadriiformesFamily: Recurvirostridae

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.

Oystercatchers

Order: CharadriiformesFamily: Haematopodidae

The oystercatchers are a group of waders; they form the family Haematopodidae, which has a single genus, Haematopus.

Plovers and lapwings

Order: CharadriiformesFamily: Charadriidae

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.

Painted-snipes

Order: CharadriiformesFamily: Rostratulidae

Painted-snipes are short-legged, long-billed birds similar in shape to the true snipes, but more brightly coloured.

Jacanas

Order: CharadriiformesFamily: Jacanidae

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.

Sandpipers and allies

Order: CharadriiformesFamily: Scolopacidae

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.

Buttonquail

Order: CharadriiformesFamily: Turnicidae

The buttonquail are small, drab, running birds which resemble the true quails. The female is the brighter of the sexes and initiates courtship. The male incubates the eggs and tends the young.

Pratincoles and coursers

Order: CharadriiformesFamily: Glareolidae

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.

Skuas and jaegers

Order: CharadriiformesFamily: Stercorariidae

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.

Auks, murres and puffins

Order: CharadriiformesFamily: Alcidae

Alcids are superficially similar to penguins due to their black-and-white colours, their upright posture and some of their habits, however they are not related to the penguins and differ in being able to fly. Auks live on the open sea, only deliberately coming ashore to nest.

Gulls, terns, and skimmers

Order: CharadriiformesFamily: Laridae

Laridae is a family of medium to large seabirds, the gulls, terns, and skimmers. 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

Order: PhaethontiformesFamily: Phaethontidae

Tropicbirds are a family, Phaethontidae, of tropical pelagic seabirds now classified in their own order Phaethontiformes. Their relationship to other living birds is unclear, and they appear to have no close relatives. They have predominantly white plumage with elongated tail feathers and small feeble legs and feet.

Loons

Order: GaviiformesFamily: Gaviidae

Loons, known as divers in Europe, are a group of aquatic birds found in many parts of North America and northern Europe. They are the size of a large duck or small goose, which they somewhat resemble when swimming, but to which they are completely unrelated.

Shearwaters and petrels

Order: ProcellariiformesFamily: Procellariidae

The procellariids are the main group of medium-sized "true petrels", characterised by united nostrils with medium septum and a long outer functional primary.

Storks

Order: CiconiiformesFamily: Ciconiidae

Storks are large, long-legged, long-necked, wading birds with long, stout bills. Storks are 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.

Frigatebirds

Order: SuiformesFamily: Fregatidae

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.

Boobies and gannets

Order: SuliformesFamily: Sulidae

The sulids comprise the gannets and boobies. Both groups are medium to large coastal seabirds that plunge-dive for fish.

Cormorants and shags

Order: SuliformesFamily: Phalacrocoracidae

Phalacrocoracidae is a family of medium to large coastal, fish-eating seabirds that includes cormorants and shags. Plumage colouration varies, with the majority having mainly dark plumage, some species being black-and-white and a few being colourful.

Pelicans

Order: PelecaniformesFamily: Pelecanidae

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.

Herons, egrets, and bitterns

Order: PelecaniformesFamily: Ardeidae

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. Members of Ardeidae fly with their necks retracted, unlike other long-necked birds such as storks, ibises and spoonbills.

Ibises and spoonbills

Order: PelecaniformesFamily: Threskiornithidae

Threskiornithidae is a family of large terrestrial and wading birds which includes the ibises and spoonbills. They have long, broad wings with 11 primary and about 20 secondary feathers. They are strong fliers and despite their size and weight, very capable soarers.

Osprey

Order: AccipitriformesFamily: Pandionidae

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.

Hawks, eagles, and kites

Order: AccipitriformesFamily: Accipitridae

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.

Barn-owls

Order: StrigiformesFamily: Tytonidae

Barn owls are medium to large owls with large heads and characteristic heart-shaped faces. They have long strong legs with powerful talons.

Owls

Order: StrigiformesFamily: Strigidae

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.

Hoopoes

Order: BucerotiformesFamily: Upupidae

Hoopoes have black, white and orangey-pink colouring with a large erectile crest on their head.

Kingfishers

Order: CoraciiformesFamily: Alcedinidae

Kingfishers are medium-sized birds with large heads, long, pointed bills, short legs and stubby tails.

Bee-eaters

Order: CoraciiformesFamily: Meropidae

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

Order: CoraciiformesFamily: Coraciidae

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.

Asian barbets

Order: PiciformesFamily: Megalaimidae

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

Order: PiciformesFamily: Picidae

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.

Falcons and caracaras

Order: FalconiformesFamily: Falconidae

Falconidae is a family of diurnal birds of prey. They differ from hawks, eagles and kites in that they kill with their beaks instead of their talons.

Cockatoos

Order: PsittaciformesFamily: Cacatuidae

The cockatoos share many features with other parrots including the characteristic curved beak shape and a zygodactyl foot, with two forward toes and two backwards toes. They differ, however in a number of characteristics, including the often spectacular movable headcrest.

Old world parrots

Order: PsittaciformesFamily: Psittaculidae

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 81NaN1 to 11NaN1 in length. Old World parrots are found from Africa east across south and southeast Asia and Oceania to Australia and New Zealand.

Pittas

Order: PasseriformesFamily: Pittidae

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.

Honeyeaters

Order: PasseriformesFamily: Meliphagidae

The honeyeaters are a large and diverse family of small to medium-sized birds most common in Australia and New Guinea. They are nectar feeders and closely resemble other nectar-feeding passerines.

Cuckooshrikes

Order: PasseriformesFamily: Campephagidae

The cuckooshrikes are small to medium-sized passerine birds. They are predominantly greyish with white and black, although some species are brightly coloured.

Vireos, shrike-babblers, and erpornis

Order: PasseriformesFamily: Vireonidae

Most of the members of this family are found in the New World. However, the shrike-babblers and erpornis, which only slightly resemble the "true" vireos and greenlets, are found in South East Asia.

Old World orioles

Order: PasseriformesFamily: Oriolidae

The Old World orioles are colourful passerine birds. They are not related to the New World orioles.

Woodswallows

Order: PasseriformesFamily: Artamidae

Woodswallows are soft-plumaged, somber-coloured passerine birds. There is a single genus, Artamus. The woodswallows are either treated as a subfamily, Artaminae, in an expanded family Artamidae, which includes the butcherbirds and Australian magpie, or as the only genus in that family.

Vangas, helmetshrikes, and allies

Order: PasseriformesFamily: Vangidae

The family Vangidae is highly variable, though most members of it resemble true shrikes to some degree.

Drongos

Order: PasseriformesFamily: Dicruridae

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.

Monarch flycatchers

Order: PasseriformesFamily: Monarchidae

The monarch flycatchers are small to medium-sized insectivorous passerines which hunt by flycatching.

Shrikes

Order: PasseriformesFamily: Laniidae

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.

Crows, jays, and magpies

Order: PasseriformesFamily: Corvidae

The family Corvidae includes crows, ravens, jays, choughs, magpies, treepies, nutcrackers and ground jays. Corvids are above average in size among the Passeriformes, and some of the larger species show high levels of intelligence.

Fairy flycatchers

Order: PasseriformesFamily: Stenostiridae

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".

Tits, chickadees and titmice

Order: PasseriformesFamily: Paridae

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.

Penduline-tits

Order: PasseriformesFamily: Remizidae

The penduline tits are a group of small passerine birds related to the true tits. They are insectivores.

Larks

Order: PasseriformesFamily: Alaudidae

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.

Cisticolas and allies

Order: PasseriformesFamily: Cisticolidae

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.

Reed warblers and allies

Order: PasseriformesFamily: Acrocephalidae

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.

Grassbirds and allies

Order: PasseriformesFamily: Locustellidae

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.

Cupwings

Order: PasseriformesFamily: Pnoepygidae

The members of this small family are found in mountainous parts of South and South East Asia.

Swallows

Order: PasseriformesFamily: Hirundinidae

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

Order: PasseriformesFamily: Pycnonotidae

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

Order: PasseriformesFamily: Phylloscopidae

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.

Bush warblers and allies

Order: PasseriformesFamily: Scotocercidae

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]

Long-tailed tits

Order: PasseriformesFamily: Aegithalidae

Long-tailed tits are a group of small passerine birds with medium to long tails. They make woven bag nests in trees. Most eat a mixed diet which includes insects.

Sylviid warblers, parrotbills, and allies

Order: PasseriformesFamily: Sylviidae

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. Most are of generally undistinguished appearance, but many have distinctive songs.

White-eyes, yuhinas, and allies

Order: PasseriformesFamily: Zosteropidae

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.

Tree-babblers, scimitar-babblers, and allies

Order: PasseriformesFamily: Timaliidae

The babblers, or timaliids, are somewhat diverse in size and colouration, but are characterised by soft fluffy plumage.

Ground babblers and allies

Order: PasseriformesFamily: Pellorneidae

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.

Laughingthrushes and allies

Order: PasseriformesFamily: Leiothrichidae

The members of this family are diverse in size and colouration, though those of genus Turdoides tend to be brown or greyish. The family is found in Africa, India, and southeast Asia.

Nuthatches

Order: PasseriformesFamily: Sittidae

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

Order: PasseriformesFamily: Sturnidae

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.

Thrushes and allies

Order: PasseriformesFamily: Turdidae

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

Order: PasseriformesFamily: Muscicapidae

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.

Waxwings

Order: PasseriformesFamily: Bombycillidae

The waxwings are a group of birds with soft silky plumage and unique red tips to some of the wing feathers. In the Bohemian and cedar waxwings, these tips look like sealing wax and give the group its name. These are arboreal birds of northern forests. They live on insects in summer and berries in winter.

Flowerpeckers

Order: PasseriformesFamily: Dicaeidae

The flowerpeckers are very small, stout, often brightly coloured birds, with short tails, short thick curved bills and tubular tongues.

Sunbirds and spiderhunters

Order: PasseriformesFamily: Nectariniidae

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.

Leafbirds

Order: PasseriformesFamily: Chloropseidae

The leafbirds are small, bulbul-like birds. The males are brightly plumaged, usually in greens and yellows.

Weavers and allies

Order: PasseriformesFamily: Ploceidae

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.

Waxbills and allies

Order: PasseriformesFamily: Estrildidae

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.

Old World sparrows

Order: PasseriformesFamily: Passeridae

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.

Wagtails and pipits

Order: PasseriformesFamily: Motacillidae

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, euphonias, and allies

Order: PasseriformesFamily: Fringillidae

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.

Longspurs and snow buntings

Order: PasseriformesFamily: Calcariidae

The Calcariidae are a group of passerine birds which had been traditionally grouped with the New World sparrows, but differ in a number of respects and are usually found in open grassy areas.

Old World buntings

Order: PasseriformesFamily: Emberizidae

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.

See also

References

External links

Notes and References

  1. Book: Hong Kong Bird Report 2003-04. 2009. Hong Kong Bird Watching Society. 239.
  2. Book: Hong Kong Bird Report 2005-06. 2010. Hong Kong Bird Watching Society. 247.
  3. Book: Hong Kong Bird Report 2005-06. 2010. Hong Kong Bird Watching Society. 247.
  4. Book: Hong Kong Bird Report 2001-02. 2007. Hong Kong Bird Watching Society. 257.
  5. Book: Hong Kong Bird Report 2003-04. 2009. Hong Kong Bird Watching Society. 239.
  6. Book: Hong Kong Bird Report 2003-04. 2009. Hong Kong Bird Watching Society. 239.
  7. Book: Hong Kong Bird Report 2005-06. 2010. Hong Kong Bird Watching Society. 247.
  8. Book: Hong Kong Bird Report 2003-04. 2009. Hong Kong Bird Watching Society. 239.
  9. Book: Hong Kong Bird Report 2005-06. 2010. Hong Kong Bird Watching Society. 247.
  10. Book: Hong Kong Bird Report 2001-02. 2007. Hong Kong Bird Watching Society. 257.
  11. Book: Hong Kong Bird Report 2003-04. 2009. Hong Kong Bird Watching Society. 239.
  12. Book: Hong Kong Bird Report 2001-02. 2007. Hong Kong Bird Watching Society. 257.
  13. Book: Hong Kong Bird Report 2003-04. 2009. Hong Kong Bird Watching Society. 239.
  14. Book: Hong Kong Bird Report 2005-06. 2010. Hong Kong Bird Watching Society. 247.
  15. Gill, F. and D. Donsker (Eds). 2019. IOC World Bird List (v 9.2). http://www.worldbirdnames.org/ retrieved 22 June 2019.
  16. Book: Hong Kong Bird Report 2001-02. 2007. Hong Kong Bird Watching Society. 257.
  17. Book: Hong Kong Bird Report 2001-02. 2007. Hong Kong Bird Watching Society. 257.
  18. Book: Hong Kong Bird Report 2003-04. 2009. Hong Kong Bird Watching Society. 239.
  19. Book: Hong Kong Bird Report 2001-02. 2007. Hong Kong Bird Watching Society. 257.
  20. Book: Hong Kong Bird Report 2005-06. 2010. Hong Kong Bird Watching Society. 247.
  21. Book: Hong Kong Bird Report 2001-02. 2007. Hong Kong Bird Watching Society. 257.
  22. Book: Hong Kong Bird Report 2005-06. 2010. Hong Kong Bird Watching Society. 247.
  23. Book: Hong Kong Bird Report 2001-02. 2007. Hong Kong Bird Watching Society. 257.
  24. Book: Hong Kong Bird Report 2005-06. 2010. Hong Kong Bird Watching Society. 247.