Top 20 Most Common Bird in Tanga

It measures 75 to 80 centimetres (30 to 31 in) in length, and has a very large cream-colored casque on the beak. The head is silver-grey and the rest of the plumage is iridescent black, except for the white rump, lower back, thighs, vent and tip of the outer tail-feathers. The sexes are similar except the female has a smaller casque and reddish skin around the eyes.

The bill is fairly short and thin, with a slightly downcurving upper mandible. The bill, legs, and feet are black and the eye is dark brown with a dark eye-ring, which is not readily visible. It is about 18 cm in length, with a long tail. It has a dark brown head and upperparts. Sexes are similar in plumage.

The fork-tailed drongo is 25 cm long and has short legs. They are medium sized and usually weigh about 50 grams. Males are mainly glossy black, although their wings are duller. Females are similar but less glossy. It is large-headed with well-developed rictal and nasal bristles, which are used as sensory organs. The rectrices curve outwards, forming the forked tail for which the species is named. The hooked bill is black and heavy, and the eye is red.

The African dusky flycatcher is 13 cm long and weighs around 11 gm. Its upperparts are plain brown, with the only facial marking being an indistinct narrow eye-ring. The chin is plain pale grey, and the rest of the underparts are grey-brown with indistinct streaks. The short, straight, laterally flattened bill is black, the legs and feet are grey, and the eyes are brown. The sexes are similar, but the juvenile is spotted with buff above, and is whitish spotted with brown below. This species is similar to the common migrant, the spotted flycatcher, Muscicapa striata, but is smaller and darker, especially on the underparts, than that species. Spotted flycatcher also has a streaked forehead, a feature not shown by the African dusky flycatcher. The African dusky flycatcher has soft, high-pitched "tzeeet" and tsirit calls.

The African harrier-hawk is a medium-sized raptor. The upperparts, head and breast are pale grey. The belly is white with fine dark barring. The broad wings are pale grey with a black trailing edge fringed with a narrow white line. The tail is black with a single broad white band. There is a bare facial patch of variable colour, usually red or yellow. Genders are similar, but young birds have pale brown instead of grey, and dark brown replacing black. An unusual trait of this species is the double-jointed knees it possesses, which enable it to reach into otherwise inaccessible holes and cracks for prey. A comparable leg-structure and behaviour can be found in the Neotropical crane hawk; a case of convergent evolution. The call is a whistled sueee-sueee-sueee.

The black rough-winged swallow is a small swallow at 13–15 cm length with a forked tail. Its plumage is blue-glossed black. Sexes are similar, but the female has shorter outer tail feathers, and less obvious wing serrations. Juveniles are brown with little gloss, and have short tails. There are many subspecies of this swallow, which some authorities may split into different species. In particular, four northeastern races, including nominate P. p. pristoptera, have conspicuous white underwing coverts (all other subspecies are green-glossed and have completely dark underwings), and may be split as the eastern rough-winged swallow or eastern saw-wing (swallow), P. orientalis. This leaves P. p. holomelaena as the black rough-winged swallow, P. holomelaena. Other subspecies are also sometimes elevated to species status, but Turner and Rose take the view that all the races of the black rough-winged swallow are, at best, incipient species.

The purple-banded sunbird (Cinnyris bifasciatus) is a species of bird in the family Nectariniidae. It is found in Angola, Botswana, Republic of the Congo, Democratic Republic of the Congo, Ethiopia, Gabon, Kenya, Malawi, Mozambique, Namibia, Rwanda, Somalia, South Africa, Swaziland, Tanzania, Uganda, Zambia, and Zimbabwe. The Tsavo sunbird, sometimes lumped with the purple-banded, is here considered a separate species.

The white-eared barbet (Stactolaema leucotis) is a species of bird in the family Lybiidae (African barbets). It is found in Kenya, Malawi, Mozambique, South Africa, Swaziland, Tanzania, and Zimbabwe.

This 16 cm long species is mainly pale brown in colour. It has long swept-back wings that resemble a crescent or a boomerang. The body is slender, and the tail is long and deeply forked, although it is usually held closed. The call is a loud, shrill scream. Sexes are similar, and young birds differ mainly in their shorter tails. Palm swifts have very short legs which they use only for clinging to vertical surfaces, since swifts never settle voluntarily on the ground.

The speckled mousebird is about 35 cm (14 inches) long, with the tail comprising approximately half the length, and weighs about 57 grams (2 oz). It is well-named, because it is dull-mousy brown in overall color on the back and on the head (including a prominent crest). The bill is black on the upper part and is a pinkish color on the lower part. The rare white-headed mousebird can be confused with this species, but the differently colored mandibles and the lack of a bare grey orbital patch render the Speckled species distinctive. The speckled mousebird is not known for its voice, as songbirds are, although it is a noisy creature. They make a warbling tsu-tsu call while in flight, and are known for their tisk-tisk alarm call while in flight.

The tambourine dove (Turtur tympanistria) is a pigeon which is a widespread resident breeding bird in woodlands and other thick vegetation in Africa south of the Sahara Desert. Its range extends from Senegal east to Ethiopia and Kenya and southwards through eastern Africa to south-eastern South Africa, but it is absent from the drier areas of south-western Africa. There is a population on the Comoros Islands. This is very much a species of thick woodlands, including dense gardens and plantations of castor oil, cocoa and rubber. As such, this shy species is usually seen when flushed whilst feeding on the forest floor, The tambourine dove builds a frail stick nest low in a thicket or vine tangle, and lays two cream-coloured eggs. Both sexes incubate, although this task is performed mainly by the female, and the eggs hatch in 13 days with another 13–14 days to fledging. The chicks are fed regurgitated food. The tambourine dove is a small plump pigeon, typically 22 cm in length. The male has a white face with a black spot behind the eye, white underparts and a grey crown. Its back, hind neck, wings and tail are pale grey brown, and the folded wings have large dark purple patches. The under tail is brown. The eye ring and feet are purple-red, and the bill is purple. The female is duller, and is white only on the belly, the face and breast being a pale grey-brown. The crown is grey-brown, without the blue-grey of the male. The juvenile resembles the female but has chestnut fringes to the feathers of the back, breast and flanks. Even in these plumages, this species is paler below than other small African doves. The tambourine dove's flight is fast and agile, and it tends to stay quite low when flushed. In flight it shows chestnut primary flight feathers and under wings. The call of this bird is a persistently repeated du-du-du-du-du. Tambourine dove is usually solitary, but is sometimes seen in family groups or with lemon doves. It is quite terrestrial, and usually forages on the ground for seeds and small fruits. It has a preference for seeds of the castor oil plant. It will on occasion eat small insects and molluscs.

The collared sunbird (Hedydipna collaris) is a bird species of the family Nectariniidae. The sunbirds are a group of very small Old World passerine birds which feed largely on nectar, although they will also take insects, especially when feeding young. Collared sunbird is in fact mainly insectivorous. Sunbird flight is fast and direct on their short wings. Most species can take nectar by hovering like a hummingbird, but usually perch to feed most of the time. The collared sunbird is a common breeder across most of sub-Saharan Africa. Two or three eggs are laid in a suspended nest in a tree. It is a seasonal migrant within its range. Collared sunbirds are tiny, only 9–10 cm long. They have short thin down-curved bills and brush-tipped tubular tongues, both adaptations to nectar feeding. The adult male has glossy green upperparts and head with a yellow belly and narrow purple breast band. The female is a duller green above and entirely yellow below. This species is found in forests near water.