Top 20 Most Common Bird in Timor-Leste

The eurasian Tree Sparrow (Passer montanus) is a widespread sparrow of the European mainland that has been introduced to some parts of North America. Eurasian Tree Sparrow is very similar to the House sparrow (Passer domesticus) but it's smaller and neater. It prefers more natural habitats, at the edges of human activity, and inhabits farmlands, parklands, and open woods.

The sooty-headed bulbul (Pycnonotus aurigaster) is a species of songbird in the Bulbul family, Pycnonotidae. It is found in south-eastern Asia. Its natural habitat is subtropical or tropical moist lowland forests.

While the common Sandpiper is considered a common shorebird around lakes and rivers, it does have a unique trait. The small bird bobs its tail, giving the appearance of wagging. The bird communicates with others by chirping in the air, but is silent when feeding on small crustaceans and invertebrates.

The pied bush chat is slightly smaller than the Siberian stonechat, Saxicola maurus, although it has a similar dumpy structure and upright stance. The male is black except for a white rump, wing patch and lower belly. The iris is dark brown, the bill and legs black. The female is drab brown and slightly streaked. Juveniles have a scaly appearance on the underside but dark above like the females.

The small size of the little Egret makes the bird easily recognizable among larger species that share the same range. The egret is seen almost anywhere there are small fish including marshes, estuaries, and rivers. The bird often searches for food by itself but prefers to build nests in communities, occasionally with other bird species.

The barred dove (Geopelia maugeus) is a small dove that is native and endemic to the Lesser Sunda Islands in Indonesia. It is closely related to the zebra dove of southeast Asia and the peaceful dove of Australia and New Guinea. It inhabits scrub, cultivated land and woodland edges in lowland areas. The barred dove is found on Sumbawa, Flores, Sumba, Timor, the Tanimbar Islands, the Kei Islands, and other smaller islands. The barred dove is similar to the zebra dove in appearance but has bare yellow skin around the eye and black-and-white barring which extends right across the breast and belly.

Red-capped plovers have a white forehead and underparts. Their upperparts are mainly grey-brown. Adult males have a rufous or reddish-brown crown and hindneck. Adult females have a paler rufous and grey-brown crown and hindneck, with a pale loreal stripe. The upperwing of Charadrius ruficapillus shows dark brown remiges (flight feathers) and primary covert feathers with a white wingbar in flight. Its length is 14–16 cm (5.5–6.3 in) and its wingspan is 27–34 cm (10.6–13.4 in); it weighs 35–40 g (1.2–1.4 oz). Breeding plumage shows a red-brown crown and nape with black margins. Non-breeding plumage is duller and lacks the black margins.

The greater crested tern is a large tern with a long (5.4–6.5 cm or 2.1–2.6 in) yellow bill, black legs, and a glossy black crest that is noticeably shaggy at its rear. The breeding adult of the nominate subspecies T. b. bergii is 46–49 cm (18–19.5 in) long, with a 125–130 cm (49–51 in) wing-span; this subspecies weighs 325–397 g (11.4–14.0 oz). The forehead and the underparts are white, the back and inner wings are dusky-grey. In winter, the upperparts plumage wears to a paler grey, and the crown of the head becomes white, merging at the rear into a peppered black crest and mask. The adults of both sexes are identical in appearance, but juvenile birds are distinctive, with a head pattern like the winter adult, and upperparts strongly patterned in grey, brown, and white; the closed wings appear to have dark bars. After moulting, the young terns resemble the adult, but still have a variegated wing pattern with a dark bar on the inner flight feathers. The northern subspecies T. b. velox and T. b. thalassina are in breeding plumage from May to September or October, whereas the relevant period for the two southern African races is from December to April. For T. b. cristata, the moult timing depends on location; birds from Australia and Oceania are in breeding plumage from September to about April, but those in Thailand, China and Sulawesi have this appearance from February to June or July. The royal tern is similar in size to this species, but has a heavier build, broader wings, a paler back and a blunter, more orange bill. The greater crested often associates with the lesser crested tern, but is 25% larger than the latter, with a proportionately longer bill, longer and heavier head, and bulkier body. Lesser crested tern has an orange-tinted bill, and in immature plumage it is much less variegated than greater crested. The greater crested tern is highly vocal, especially at its breeding grounds. The territorial advertising call is a loud, raucous, crow-like kerrak. Other calls include a korrkorrkorr given at the nest by anxious or excited birds, and a hard wep wep in flight.

The spotted Dove is a medium-sized bird that is swift in flight. It prefers to live year-round in warm climates in suburban areas, especially in parks. Their nests are mostly made out of sticks and they like to dine on insects and seeds.

These tall birds are quite distinctive with their bright white feathers, black legs, and orange beaks. Great Egrets live near both fresh and saltwater, nesting high in trees to protect their eggs from predatory mammals. They are colonial nesters, living in large groups (colonies), and they find the majority of their food in the nearest body of water.

The little black cormorant is a small cormorant measuring 60–65 cm (23.5–25.5 in) with all black plumage. The back has a greenish sheen. In breeding season, white feathers appear irregularly about the head and neck, with a whitish eyebrow evident. The plumage is a more fade brown afterwards. Males and females are identical in plumage. The long slender bill is grey, and legs and feet black. The iris of the adult is green and the juvenile brown. Immature birds have brown and black plumage.

A larger-sized wading bird, the common Greenshank has wide eyes that give it a gentle-looking appearance. It is often seen wading along shorelines picking up small aquatic insects and fish with its upturned beak. It is a vocal bird with a mellow call it emits whether it is searching for food in a small group or by itself.

The little pied cormorant is a small cormorant measuring 56–58 cm (22–23 in) with a shorter 3 cm (1.2 in) bill and longer tail than the little black cormorant; it has a small black crest. It is found in two morphs in New Zealand. Subspecies melanoleucos and brevicauda are found only in a pied morph, black (with a slight green tinge) above and white beneath. This is also found in subspecies brevirostris, but in this form the melanistic morph is much more common. In this form the entire plumage is black with a greenish tinge except for the sides of the head, chin, throat and upper neck; the bill is yellow with black on top. Intermediate forms are also found. The pied form is glossy black above with white face, underparts and thighs. The bill and bare skin around the face are yellow. In both forms the legs and feet are black. The pied form is rare in New Zealand, and is most common there in Northland, where it makes up one in every four birds or so. Chicks have dark brown down, with pied morph having patches of paler down. Immature birds are a dull blackish brown, with pied morph birds having paler underparts. The little pied cormorant makes a low cooing during courtship. Similar species include the black-faced cormorant (slightly larger) and the Australian pied cormorant (substantially larger).

The size, black cap, strong bill (29–34 mm in males, 25–27 mm and stubbier in females, with a pronounced gonys) and more positive flight recall common or Arctic tern, but the short, forked-looking tail and dark grey breeding plumage above and below are typically marsh tern characteristics. The summer adult has white cheeks and red legs and bill. The crown is flecked with white in the juvenile, and the hindcrown is more uniformly blackish, though in the winter adult this too is flecked with white. The black ear-coverts are joined to the black of the hindcrown, and the space above is mottled with white, causing the black to appear as a C-shaped band. The sides of the neck are white; this sometimes continues across the nape. The collar is less sharply defined. All through the year the rump is pale grey. In the juvenile, the mantle (279 mm) has a variegated pattern. The feathers of the back and scapulars are dark brown, with prominent broad buff edgings and often subterminal buff bars or centers. There is usually an admixture of new gray feathers, especially on the mantle, quite early in the fall. The mantle is silvery-gray in the adult. The call is a characteristic krekk. In winter, the forehead becomes white and the body plumage a much paler grey. Juvenile whiskered terns have a ginger scaly back, and otherwise look much like winter adults. The first winter plumage is intermediate between juvenile and adult winter, with patchy ginger on the back. The whiskered tern eats small fish, amphibians, insects and crustaceans.

The brahminy kite is distinctive and contrastingly coloured, with chestnut plumage except for the white head and breast and black wing tips. The juveniles are browner, but can be distinguished from both the resident and migratory races of black kites in Asia by the paler appearance, shorter wings, and rounded tail. The pale patch on the underwing carpal region is of a squarish shape and separated from Buteo buzzards. The brahminy kite is about the same size as the black kite (Milvus migrans) and has a typical kite flight, with wings angled, but its tail is rounded unlike the Milvus species, red kite, and black kite, which have forked tails. The two genera are, however, very close. The call is a mewing keeyew.

The Australian pelican is medium-sized by pelican standards, with a wingspan of 2.3 to 2.6 m (7.5 to 8.5 ft). Weight can range from 4 to 13 kg (8.8 to 28.7 lb), although most of these pelicans weigh between 4.54 and 7.7 kg (10.0 and 17.0 lb). The average weight of four unsexed Australian pelicans was 5.5 kg (12 lb), making this the heaviest Australian flying bird species on average, although the male of the more sexually dimorphic Australian bustard weighs a bit more at average and maximum weights (both birds are, of course, much smaller than the cassowary and emu). The pale, pinkish bill is enormous, even by pelican standards, and is the largest bill in the avian world. The record-sized bill was 50 cm (20 in) long. Females are slightly smaller with a notably smaller bill, which can measure as small as 34.6 cm (13.6 in) at maturity. The total length is boosted by the bill to 152–188 cm (60–74 in), which makes it rank alongside the Dalmatian pelican as the longest of pelicans. It has the largest bill of any bird. Overall, the Australian pelican is predominantly white in colour. There is a white panel on the upper-wing and a white-V on the rump set against black along the primaries. During courtship, the orbital skin and distal quarter of the bill are orange-coloured with the pouch variously turning dark blue, pink and scarlet. The non-breeding adult has its bill and eye-ring a pale yellow and the pouch is a pale pinkish. Juvenile birds are similar to the adults, but with black replaced with brown and the white patch on upper wing reduced. Overall, their appearance is somewhat similar to several other pelicans, though the species is allopatric.

The pied stilt grows to a length of about 14 in (36 cm) with a wingspan of about 26.5 in (67 cm). The back of the head and neck, the back and the upper surfaces of the wings are glossy greenish-black. The undersides of the wings are plain black and the remainder of the plumage is white, apart from the tail feathers which are tinged with grey. The long, thin legs are pink and the toes have black claws. The long slender beak is black and the irises and the eyelids are red.

These birds are among the smallest of waders, very similar to the little stint, Calidris minuta, with which they were once considered conspecific. The red-necked stint's small size, fine dark bill, dark legs and quicker movements distinguish this species from all waders except the other dark-legged stints. It measures 13–17 cm (5.1–6.7 in) in length, 28–37 cm (11–15 in) in wingspan and 21–51 g (0.74–1.80 oz) in body mass. It can be distinguished from the western sandpiper and the semipalmated sandpiper in all plumages by its combination of a fine bill tip, unwebbed toes, and longer primary projection. The breeding adult has an unstreaked orange breast, bordered with dark markings below, and a white V on its back. In winter plumage identification is difficult, although it is shorter legged and longer winged than the little stint. Juveniles have more contrasting mantle plumage and weaker white lines down the back than their relative. The call is a hoarse "stit".

Rainbow bee-eaters are brilliantly coloured birds that grow to be 23–28 cm (9.1–11.0 in) in length, including the elongated tail feathers, and weighing 20–33 g (0.71–1.16 oz). The upper back and wings are green in colour, and the lower back and under-tail coverts are bright blue. The undersides of the wings and primary flight feathers are rufous to copper with green edges and tipped with black, and the tail is black to deep violet. The rainbow bee-eater's two central tail feathers are longer than the other tail feathers, and are longer in the male rainbow bee-eaters than in the females. The crown of the head, the stomach and breast, and the throat are pale yellow-orange in color, and it has a black crescent-shaped gorget and a black stripe, edged with blue, extending through its bright red eye. They have small, syndactylous feet (i.e., with toes partly united). The juvenile has a greener crown, lacks throat bands and tail streamers.