Undulated TinamouCrypturellus undulatusTinamousUpland GooseChloephaga pictaDucks, Geese, and WaterfowlUdzungwa PartridgeXenoperdix udzungwensisPheasants, Grouse, and AlliesUniform SwiftletAerodramus vanikorensisSwiftsUniform CrakeAmaurolimnas concolorRails, Gallinules, and CootsUpland SandpiperBartramia longicaudaSandpipers and AlliesUpland BuzzardButeo hemilasiusHawks, Eagles, and KitesUral OwlStrix uralensisOwlsUnspotted Saw-whet OwlAegolius ridgwayiOwlsUltramarine KingfisherTodiramphus leucopygiusKingfishersUltramarine LorikeetVini ultramarinaOld World ParrotsUndulated AntshrikeFrederickena unduligerTypical AntbirdsUniform AntshrikeThamnophilus unicolorTypical AntbirdsUpland AntshrikeThamnophilus aroyaeTypical AntbirdsUnicolored AntwrenMyrmotherula unicolorTypical AntbirdsUndulated AntpittaGrallaria squamigeraAntpittasUrubamba AntpittaGrallaria occabambaeAntpittasUrrao AntpittaGrallaria urraoensisAntpittasUtcubamba TapaculoScytalopus intermediusTapaculosUnicolored TapaculoScytalopus unicolorTapaculosUniform WoodcreeperHylexetastes uniformisOvenbirds and WoodcreepersUniform TreehunterThripadectes ignobilisOvenbirds and WoodcreepersUnstreaked Tit-TyrantUromyias agraphiaTyrant FlycatchersUrich's TyrannuletPhyllomyias urichiTyrant FlycatchersUnadorned FlycatcherMyiophobus inornatusTyrant FlycatchersUtupua WhistlerPachycephala utupuaeWhistlers and AlliesUluguru BushshrikeMalaconotus aliusBushshrikes and AlliesUa Pou MonarchPomarea miraMonarch FlycatchersUnicolored JayAphelocoma unicolorCrows, Jays, and MagpiesUsambara HyliotaHyliota usambaraHyliotasUpcher's WarblerHippolais languidaReed Warblers and AlliesUluguru Mountain GreenbulArizelocichla neumanniBulbulsUsambara GreenbulPhyllastrephus albigulaBulbulsUganda Woodland-WarblerPhylloscopus budongoensisLeaf WarblersUsambara ThrushTurdus roehliThrushes and AlliesUnicolored ThrushTurdus haplochrousThrushes and AlliesUssher's FlycatcherArtomyias ussheriOld World FlycatchersUsambara AkalatSheppardia montanaOld World FlycatchersUltramarine FlycatcherFicedula superciliarisOld World FlycatchersUluguru Violet-backed SunbirdAnthreptes neglectusSunbirds and SpiderhuntersUsambara Double-collared SunbirdCinnyris usambaricusSunbirds and SpiderhuntersUrsula's SunbirdCinnyris ursulaeSunbirds and SpiderhuntersUsambara WeaverPloceus nicolliWeavers and AlliesUpland PipitAnthus sylvanusWagtails and PipitsUla-ai-hawaneCiridops annaFinches, Euphonias, and AlliesUnicolored BlackbirdAgelasticus cyanopusTroupials and AlliesUltramarine GrosbeakCyanoloxia brissoniiCardinals and AlliesUniform FinchHaplospiza unicolorTanagers and Allies