Norway

Undulated Tinamou

Crypturellus undulatus

Unicolored Antwren

Myrmotherula unicolor

Unicolored Blackbird

Agelasticus cyanopus

Thrift Rust

Uromyces armeriae

Unicolored Jay

Aphelocoma unicolor

Unicolored Tapaculo

Scytalopus unicolor

Upland Antshrike

Thamnophilus aroyae

Fluffy-backed Tit-Babbler

Macronus ptilosus

Unicolored Thrush

Turdus haplochrous

Diatom

Stephanodiscus subtilis

Chestnut-headed Partridge

Arborophila cambodiana

Thin Cord-moss

Entosthodon attenuatus

Chestnut-headed Tesia

Cettia castaneocoronata

Chestnut-naped Antpitta

Grallaria nuchalis

Chevron

Eulithis testata

Uniform Crake

Amaurolimnas concolor

Uniform Finch

Haplospiza unicolor

Uniform Swiftlet

Aerodramus vanikorensis

Uniform Treehunter

Thripadectes ignobilis

Union Rustic

Pabulatrix pabulatricula

Parading Coral

Ramaria suecica

Ring Ouzel

Turdus torquatus

laurel-leaf willow

Salix laurina

Chestnut-naped Francolin

Pternistis castaneicollis

Helvella phlebophora

unspotted moonsnail

Euspira montagui

Upright Screw-moss

Tortula subulata

Unspotted Saw-whet Owl

Aegolius ridgwayi

Ural Owl

Strix uralensis

upland field grasshopper

Chorthippus apricarius

Upland Pipit

Anthus sylvanus

Upper Magdalena Tapaculo

Scytalopus rodriguezi

Urban spurge

Euphorbia agraria

Upright Coral

Ramaria stricta

Upright Knight

Tricholoma stans

Upright Mignonette

Reseda alba

Upright Vetch

Vicia orobus

Urich's Tyrannulet

Phyllomyias urichi

Vagrant Twitcher

Tebenna micalis

Tenthredid Wasp

Monostegia abdominalis

Ursula's Sunbird

Cinnyris ursulae

Vampires Bane

Mycetinis scorodonius

Uruguayan pampas grass

Cortaderia selloana

Usambara Eagle-Owl

Bubo vosseleri

Usambara Greenbul

Phyllastrephus albigula

Usambara Hyliota

Hyliota usambara

Usambara Thrush

Turdus roehli

Vahl's cinquefoil

Potentilla vahliana

Usambara Weaver

Ploceus nicolli

Vagrant Piercer

Cydia amplana

Vahl's alkaligrass

Puccinellia vahliana

Valley redstem

Ammannia coccinea

Van Dam's Vanga

Xenopirostris damii

Vanuatu Whistler

Pachycephala chlorura

Van Hasselt's Sunbird

Leptocoma brasiliana

Vanikoro Monarch

Mayrornis schistaceus

Vanikoro White-eye

Zosterops gibbsi

Vanuatu Megapode

Megapodius layardi

Vanuatu Petrel

Pterodroma occulta

Variable Antshrike

Thamnophilus caerulescens