Birds beginning with U

Udzungwa Partridge - Discovered only in 1991, this bird was first noticed as a pair of strange feet in a cooking pot in a Tanzanian forest camp. It inhabits and is endemic to forests of the Udzungwa Mountains in Tanzania. A second population from the Rubeho Highlands was initially believed to be a well-marked subspecies, but is now recognized to be specifically distinct. The diet consists mainly of beetles, ants and seeds.

Uganda Woodland Warbler - Its natural habitat is subtropical or tropical moist lowland forests.

Ultramarine Flycatcher - Summer: Common breeding visitor to the western Himalayas, from Kohat in North-West Frontier Province, Pakistan east through Kashmir to Uttaranchal , and intergrading with in Nepal with the eastern race aestigma which continues in the eastern Himalayas through Bhutan to Arunachal Pradesh to Tibet. Breeding between 2000-2700m, occasionally as low as 1800 and as high as 3200m. Also in the lower hills of Meghalaya and Nagaland, Khasi and Cachar hills, sometimes considered a third race; winter movements of this population is not known . Habitat: Open, mixed forests of oak, rhododendron, pine, fir, etc., occasionally orchards.

Ultramarine Grosbeak - The Ultramarine Grosbeak is a species of cardinal in the Cardinalidae family. It is found in a wide range of semi-open habitats in eastern and central South America, with a disjunct population in northern South America. The male closely resembles the Blue-black Grosbeak, while the females are quite different.

Undulated Antpitta - It is found in Bolivia, Colombia, Ecuador, Peru, and Venezuela.

Undulated Tinamou - The Undulated Tinamou Crypturellus undulatus is a type of ground bird commonly found in lowland moist forest.

Unicolored Jay - The Unicolored Jay is an Aphelocoma jay native to cloud forests of northwestern Central America and southern and southeastern Mexico, from central Honduras west to central Guerrero, southern Veracruz and extreme southern San Luis Potosi. It is apparently a basal member of its genus .

Unicoloured Antwren - Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical dry shrubland. It is threatened by habitat loss.

Unicoloured Blackbird - The Unicoloured Blackbird is a species of bird in the Icteridae family.

Unicoloured Thrush - The Unicoloured Thrush is a species of bird in the Turdidae family. It is endemic to Bolivia.

Uniform Antshrike - The Uniform Antshrike is a species of bird in the Thamnophilidae family. It is found in Colombia, Ecuador, and Peru. Its natural habitat is subtropical or tropical moist montanes.

Uniform Crake - This relatively small, rufous bird is highly cryptic in its behavior and rarely seen.

Uniform Finch - It is found in Argentina, Brazil, Paraguay, and Uruguay. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests.

Uniform Treehunter - Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests. It is not considered a threatened species by the IUCN.

Unspotted Saw-whet Owl - This nocturnal bird breeds in open mountain forests, in both the cloud forest and the higher oak woodland, laying its eggs in a tree hole. It takes rodents, shrews and other small mammals as its main prey, but will also feed on birds, bats and insects.

Unstreaked Tit-Tyrant - The Unstreaked Tit-Tyrant is a species of bird in the Tyrannidae family. It has been placed in the genus Uromyias, which formerly was recognized based on syringial and plumage characters, but now is known to be imbedded within Anairetes. It is endemic to Peru.

Upcher's Warbler - This small passerine bird is a species found in semi-desert habitats, frequenting bushy scrub and thickets of tamarisk. 4-5 eggs are laid in a nest in bushes and low trees.

Upland Buzzard - It is found in Bhutan, China, Hong Kong, Pakistan, Iran, Japan, Kashmir Kazakhstan, North Korea, South Korea, Mongolia, Nepal, Republic of India, Russia, Tajikistan, and Uzbekistan. Its natural habitat is boreal forests.

Upland Goose - The Upland Goose or Magellan Goose is a South American member of the duck, goose and swan family Anatidae. It is in the shelduck subfamily Tadorninae. Males have a white head and breast, whereas the females are brown with black-striped wings and yellow feet, and could be mistaken for Ruddy-headed Geese. These birds are 60-72.5 cm long and weigh 2.7-3.2 kg . They are found in open grasslands

Upland Sandpiper - The adult is 28–32 cm long with a 50–55 cm wingspan. It has long yellow legs and a long neck and tail. The head and neck are light with brown streaks. The back and upper wings are a darker mottled brown and the belly is white.

Upupa antaios - The Giant Hoopoe , also known as Saint Helena Giant Hoopoe or Saint Helena Hoopoe, is an extinct species of Hoopoe , known exclusively from an incomplete subfossil skeleton.

Upupa marginata - The Madagascar Hoopoe is a subspecies of Hoopoe in the Upupidae family. It is often considered to be treated as a separate species to the Hoopoe due to its vocalisations and small differences in plumage, but is otherwise similar to the rest of the species. It is endemic to Madagascar.

Ural Owl - The Ural Owl is smaller than the Great Grey Owl, and much larger than the Tawny Owl, which it superficially resembles. Distinguishing features apart from the size are the pale, buffish grey-brown plumage, with copious dark brown streaking on the back, back of the head and underparts. It has a round head with plain buffish-grey facial discs, orange-yellow bill and small black eyes. The tail is long and wedge-shaped, with dark barring on the uppertail, and the wings are rounded. Flight is direct and purposeful, recalling that of the Common Buzzard. Sexes are similar, with no seasonal variation. Size: 50–59 cm; Wingspan: Male 115 cm, female 125 cm; Weight: Male 540-730 g, female 720-1200 g.

Urich's Tyrannulet - Its natural habitat is subtropical or tropical moist montanes. It is threatened by habitat loss.

Urolais epichlorus - It is found in Cameroon, Equatorial Guinea, and Nigeria. Its natural habitats are subtropical or tropical moist montane forests and dry savanna.

Ursula's Sunbird - Its natural habitat is subtropical or tropical moist montane forests. It is becoming rare due to habitat loss.

Usambara Akalat - Its natural habitat is subtropical or tropical moist montanes. It is threatened by habitat loss.

Usambara Weaver - Its natural habitats are subtropical or tropical moist montanes and plantations . It is threatened by habitat loss.

Ussher's Flycatcher - The Ussher's Flycatcher is a species of bird in the Muscicapidae family. It is found in Ivory Coast, Ghana, Guinea, Guinea-Bissau, Liberia, Nigeria, and Sierra Leone. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical moist lowland forests, as well as Denver, Colorado and sub-Saharan Africa.