Top 20 Most Common Bird in Brunei and Muara

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 brown-throated sunbird is a relatively large, heavy sunbird with a thick bill. Measuring some 14 centimetres (5.5 in) in length, it has a mass of 7.4–13.5 g (0.26–0.48 oz), with males averaging slightly larger than females. Like most sunbirds, the male brown-throated sunbird is more colourful than the female. The male has iridescent green and purple upperparts with chestnut on the wing-coverts and scapulars; it is primarily yellow below. The female is olive-green above and yellowish below.

The olive-winged bulbul (Pycnonotus plumosus) is a member of the bulbul family of passerine birds. It is found in south-eastern Asia and the Greater Sunda Islands. Its natural habitat is subtropical or tropical moist lowland forests.

With the probable extinctions of the imperial woodpecker and the ivory-billed woodpecker, this species, at 48–58 cm (19–23 in) long and a weight of 360–563 g (0.794–1.241 lb), stands as the largest woodpecker in the world. Among standard measurements, the wing chord is 21.5 to 25 cm (8.5 to 9.8 in), the tail is 13.4 to 16.2 cm (5.3 to 6.4 in), the bill is 6 to 6.5 cm (2.4 to 2.6 in) and the tarsus is 3.6 to 4.1 cm (1.4 to 1.6 in). This unique-looking woodpecker has several obvious distinctive features: a very long, strong chisel-tipped bill, an elongated neck and a long tail. A slight crest maybe occasionally evident. This species plumage is almost entirely dark grey or blackish slate-grey overlaid with small white spots. The throat is paler grey and males have small red moustache. Normally, the nominate subspecies is the darkest, most slaty gray race. M. p. harterti has a more pale throat with a greater amount of whitish feather tips forming small spot and is slightly paler below than the nominate, sometimes appearing almost whitish on the belly. The size and structure readily distinguishes this bird from almost any other species, including other woodpeckers. Occasionally, at first glance, the great slaty woodpecker is mistaken for a hornbill but, obviously, such a resemblance is slight at best. For a bird of such great size, the great slaty woodpecker has a weak, quiet voice, especially compared to other large woodpeckers, which tend to have loud, booming voices. The species call is a whinnying cackle of 2 to 5, usually 4 notes, woikwoikwoikwoik, the initial being higher in pitched and the middle note being distinctly lower. Single dwot calls, variable in sound, strength and duration, are sometimes given while perched or in flight. Breeding pairs of these woodpeckers have been heard to softly mew at each other. In more antagonistic situations, sharp taw-whit or dew-it calls are uttered while the birds swing their heads back and forth.

The Malaysian pied fantail (Rhipidura javanica) is a species of bird in the fantail family and one of 47 species in the genus Rhipidura. It is locally referred to as murai gila, literally "crazy thrush" in the Malay language. It is found in Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand, and Vietnam. Its natural habitat is subtropical or tropical moist lowland forests. A single sight was recorded from Yala National Park of south Sri Lanka.

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.

Measuring 9 cm (3.5 in) and weighing 7 to 8 grams (0.25 to 0.28 oz), the scarlet-backed flowerpecker is a small bird with a short tail. It exhibits sexual dimorphism. The male has a navy blue face, wings and tail, with a broad bright red stripe from its crown to its upper tail coverts. The female is predominantly olive green with a black tail and scarlet upper tail coverts and rump. Both sexes have creamy white underparts, black eyes and legs, and a dark grey arched bill. The juvenile has plumage similar to the female but has an orange bill and lacks the bright red rump.

The eyebrow buzz (Pycnonotus goiavier), is a common songbird from the family of the buulbuuls. The eyebrow bulge is found in large parts of Southeast Asia and the Indian Archipelago.

The Pacific swallow (Hirundo tahitica) is a small passerine bird in the swallow family. It breeds in tropical southern Asia and the islands of the south Pacific. It is resident apart from some local seasonal movements. This bird is associated with coasts, but is increasingly spreading to forested uplands. The hill swallow was formerly considered conspecific. This species is a small swallow at 13 cm. It has a blue back with browner wings and tail, a red face and throat, and dusky underparts. It differs from the barn swallow and the closely related welcome swallow in its shorter and less forked tail. The Pacific swallow builds a neat cup-shaped nest, constructed with mud pellets collected in the beak, under a cliff ledge or on a man-made structures such as a building, bridge or tunnel. The nest is lined with softer material, and the clutch is two to three eggs. It is similar in behaviour to other aerial insectivores, such as other swallows and the unrelated swifts. It is a fast flyer and feeds on insects, especially flies, while airborne.

The green iora is 12–14 cm (4.7–5.5 in) long. The male has black lores and bright yellow "eyelids" (a broken eye-ring). The face and upperparts are dark olive. The wings are black, with two white wing-bars on the covert feathers and olive-yellow margins on the flight feathers. The underparts are also dark olive, with lighter flanks and a yellow centre belly. The tail is black. The eyes are dark to red brown, the beak is grey-blue, and the feet are slaty blue. The female has yellow lores and a complete eye-ring. The upperparts and tail are medium olive. The wings are similar to those of the male but are washed olive, and the wing-bars are yellow instead. The underparts are olive green, with a yellow tint on the centre belly. The juvenile bird is similar to the female, but is paler.

The dusky munia (Lonchura fuscans) is a species of estrildid finch which is endemic to Borneo. It is found in subtropical/ tropical lowland shrubland, forest and grassland habitat. The status of the species is evaluated as Least Concern.

The pied triller (Lalage nigra) is a species of bird in the family Campephagidae. It is found in Brunei, India, Indonesia, Malaysia, the Philippines, Singapore, and Thailand.

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.

This medium-large, dark brown eagle is stocky, with rounded wings and a short tail. Its short black and white fan-shaped nuchal crest gives it a thick-necked appearance. The bare facial skin and feet are yellow. The underside is spotted with white and yellowish-brown. When perched the wing tips do not reach until the tail tip. In soaring flight, the broad and paddle-shaped wings are held in a shallow V. The tail and underside of the flight feathers are black with broad white bars. Young birds show a lot of white on the head. The tarsus is unfeathered and covered by hexagonal scales. The upper mandible does not have an overhanging festoon to the tip.

Van Hasselt's sunbird (Leptocoma brasiliana), is a species of bird in the family Nectariniidae. It is found in Northeast India, Bangladesh and Southeast Asia. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical mangrove forests. It used to be considered a subspecies of the purple-throated sunbird. In 1939, a group of bird lovers in Hawaii known as the Hui Manu released 28 of these birds on various parts of the leeward side of Oahu in Hawaii in an attempt to get them to become established there; none appeared have succeeded.

The yellow-eared barbet (Psilopogon australis) is an Asian barbet native to Java and Bali. It inhabits shrubland and forest up to an altitude of 2,000 m (6,600 ft). Bucco australis was the scientific name proposed by Thomas Horsfield in 1821 who described a barbet from Java with yellow cheeks and breast.

The buff-rumped woodpecker (Meiglyptes tristis) is a species of bird in the family Picidae. It is found in southern Myanmar, Thailand, Malaya, Java, Sumatra and Borneo. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical moist lowland forests. The buff-rumped woodpecker was described by the American naturalist Thomas Horsfield in 1821 under the binomial name Picus tristis from a specimen collected in Java. The specific epithet tristis is Latin for "sad" or "gloomy". The species is now placed in the genus Meiglyptes that was introduced by the English naturalist William John Swainson in 1837. Two subspecies are recognised: M. t. grammithorax (Malherbe, 1862) – Malay Peninsula, Sumatra, Borneo and nearby islands M. t. tristis (Horsfield, 1821) – Java Some authorities treat the two subspecies as separate species with M. grammithorax as the buff-rumped woodpecker and M. tristis as the white-rumped woodpecker.

The zebra Dove is a small dove found in dense forests, open fields, farmlands, and similar suburban areas. Unlike other dove species, this ground-dwelling bird likes to forage alone or in pairs, but not in large groups. The call of this slender dove is often described as very pleasant. Very common in urban areas, they are quite comfortable around humans.

This species is one of the largest living species of woodpecker. Adults range in size from 40 to 48 cm (16 to 19 in) and are second in size only to the great slaty woodpecker among Asian woodpecker species. The species is considered closely related to the more northern black woodpecker and the North American pileated woodpecker and is similar in size to these species. Body mass can vary from 197 to 350 g (6.9 to 12.3 oz). Among standard measurements, the wing chord is 20.5 to 25.2 cm (8.1 to 9.9 in), the tail is 14.3 to 18.9 cm (5.6 to 7.4 in), the bill is 4.6 to 6 cm (1.8 to 2.4 in) and the tarsus is 3.2 to 4.3 cm (1.3 to 1.7 in). The subspecies hodgsonii has whitish underwing coverts and a white rump. The face lacks white, but juveniles of the nominate race can have white streaks on the throat. Differences from the other Southeast Asian subspecies in the vocalizations and morphology of this species are suggested to be large enough to raise this to full species status. Solitary adults may spend an hour foraging at a suitable tree. The subspecies hodgsonii of India breeds from January to May, mainly in large dead trees, often using the same tree year after year. The normal clutch is usually of two eggs. They feed mainly on insects such as ants or grubs obtained mainly from under bark, but sometimes take fruit. Although shy, they can nest close to well-used tracks and human disturbed areas. They have a range of calls from a short, sharp "kuk" to more intoned "kyuk", "kew", "kee-yow" calls. The longer calls are given prior to flying off. They roost within holes.

The yellow-bellied prinia (Prinia flaviventris) is a species of bird in the family Cisticolidae. It is found in Pakistan, the southern Himalayan foothills, the northeastern Indian subcontinent, and Southeast Asia.