- Leptasthenura fuliginiceps
- Leptasthenura pileata
- Leptasthenura platensis
- Leptasthenura setaria
- Leptasthenura striata
- Leptasthenura striolata
- Leptasthenura xenothorax
- Leptasthenura yanacensis
- Leptocoma
- Leptocoma Zeylonica
- Leptocoma aspasia
- Leptocoma brasiliana
- Leptocoma calcostetha
- Leptocoma minima
- Leptocoma sericea
- Leptocoma sperata
- Leptocoma zeylonica
- Leptodon cayanensis
- Leptodon forbesi
- Leptopoecile
- Leptopoecile elegans
- Leptopoecile sophiae
- Leptopoecile sophiae sophiae
- Leptopogon
- Leptopogon amaurocephalus
- Leptopogon rufipectus
- Leptopogon superciliaris
- Leptopogon taczanowskii
- Leptopterus
- Leptopterus chabert
- Leptopterus madagascarinus
- Leptopterus viridis
- Leptoptilos
- Leptoptilos crumenifer
- Leptoptilos crumeniferus
- Leptoptilos dubius
- Leptoptilos javanicus
- Leptoptilus crumeniferus
- Leptosittaca
- Leptosittaca branickii
- Leptosomatidae
- Leptosomidae
- Leptosomiformes
- Leptosomus
- Leptosomus discolor
- Leptotila
- Leptotila battyi
- Leptotila cassini
- Leptotila cassinii
- Leptotila conoveri
- Leptotila jamaicensis
- Leptotila megalura
- Leptotila ochraceiventris
- Leptotila pallida
- Leptotila plumbeiceps
- Leptotila rufaxilla
- Leptotila verreauxi
- Leptotila wellsi
- Leptotrygon
- Leptotrygon veraguensis
- Lerwa
- Lerwa lerwa
- Lesbia
- Lesbia nuna
- Lesbia victoriae
- Lesbos
- Lesotho
- Lesser Adjutant
- Lesser Adjutant Stork
- Lesser Akialoa
- Lesser Antillean Bullfinch
- Lesser Antillean Flycatcher
- Lesser Antillean Pewee
- Lesser Antillean Saltator
- Lesser Antillean Swift
- Lesser Antillean Tanager
- Lesser Antilles
- Lesser Band-winged Nightjar
- Lesser Bird-of-Paradise
- Lesser Bird-of-paradise
- Lesser Bird of Paradise
- Lesser Black-backed Gull
- Lesser Black Coucal
- Lesser Black back Gull
- Lesser Blackback Gull
- Lesser Blackwit
- Lesser Blue-eared Glossy-Starling
- Lesser Blue-eared Glossy Starling
- Lesser Blue-eared Starling
- Lesser Blue-winged Pitta
- Lesser Bristlebill
- Lesser Broad-billed Prion
- Lesser Brown-necked Raven
- Lesser Brown Bulbul
- Lesser Canastero
- Lesser Cape Verde Kestrel
- Lesser Coucal
- Lesser Crested Tern
- Lesser Cuckoo
- Lesser Cuckoo-Shrike
- Lesser Cuckoo-shrike
- Lesser Cuckooshrike
- Lesser Eagle-Owl
- Lesser Eagle Owl
- Lesser Elaenia
- Lesser Fish-Eagle
- Lesser Fish Eagle
- Lesser Fishing-Eagle
- Lesser Fishing Eagle
- Lesser Flame-backed Woodpecker
- Lesser Flameback Woodpecker
- Lesser Flamebacked Woodpecker
- Lesser Flamingo
- Lesser Florican
- Lesser Forktail
- Lesser Frigatebird
- Lesser Glossy Starling
- Lesser Golden Plover
- Lesser Goldenback
- Lesser Goldfinch
- Lesser Grass-Finch
- Lesser Grass Finch
- Lesser Gray Shrike
- Lesser Green Broadbill
- Lesser Green Leafbird
- Lesser Greenlet
- Lesser Grey Shrike
- Lesser Ground-Cuckoo
- Lesser Ground-Robin
- Lesser Ground Cuckoo
- Lesser Ground Robin
- Lesser Hawk-Cuckoo
- Lesser Hawk Cuckoo
- Lesser Hill Myna
- Lesser Honeyguide
- Lesser Hoopoe-Lark
- Lesser Hoopoe Lark
- Lesser Horned Owl
- Lesser Hornero
- Lesser Icterine Greenbul
- Lesser Jacana
- Lesser Kestrel
- Lesser Kiskadee
- Lesser Koa-Finch
- Lesser Koa Finch
- Lesser Masked-Owl
- Lesser Masked-Weaver
- Lesser Masked Owl
- Lesser Masked Weaver
- Lesser Melampitta
- Lesser Moorhen
- Lesser Necklaced Laughing-thrush
- Lesser Necklaced Laughingthrush
- Lesser New Guinea Thrush
- Lesser Nighthawk
- Lesser Noddy
- Lesser Nothura
- Lesser Paradise-Kingfisher
- Lesser Paradise Kingfisher
- Lesser Petronia
- Lesser Pied Puffbird
- Lesser Pitohui
- Lesser Pitta
- Lesser Prairie-Chicken
- Lesser Prairie Chicken
- Lesser Racket-tailed Drongo
- Lesser Racquet-tailed Drongo
- Lesser Red-headed Babbler
- Lesser Red-headed Parrotbill
- Lesser Red-headed Suthora
- Lesser Red-headed Tree-Babbler
- Lesser Red-headed Tree Babbler
- Lesser Redpoll
- Lesser Rhea
- Lesser Riflebird
- Lesser Roadrunner
- Lesser Robin-chat
- Lesser Rock-Sparrow
- Lesser Rock Sparrow
- Lesser Rufous-headed Parrotbill
- Lesser Sand Plover
- Lesser Sandplover
- Lesser Scaly-breasted Wren-Babbler
- Lesser Scaly-breasted Wren Babbler
- Lesser Scaup
- Lesser Scimitar-Babbler
- Lesser Scimitar Babbler
- Lesser Seed-Finch
- Lesser Seed Finch
- Lesser Seedcracker
- Lesser Short-toed Lark
- Lesser Shortwing
- Lesser Shrike-Babbler
- Lesser Shrike-Tyrant
- Lesser Shrike Babbler
- Lesser Shrike Tyrant
- Lesser Snow Goose
- Lesser Snow Petrel
- Lesser Sooty-Owl
- Lesser Sooty Owl
- Lesser Spotted Eagle
- Lesser Spotted Woodpecker
- Lesser Streaked Honeyeater
- Lesser Striped-Swallow
- Lesser Striped Swallow
- Lesser Sulphur-crested Cockatoo
- Lesser Sunda Islands
- Lesser Sunda Scops-Owl
- Lesser Sunda Scops Owl
- Lesser Sunda Whistler
- Lesser Sundas
- Lesser Superb Bird-of-paradise
- Lesser Swallow-tailed Swift
- Lesser Swamp-Warbler
- Lesser Swamp Warbler
- Lesser Vasa-Parrot
- Lesser Vasa Parrot
- Lesser Violetear
- Lesser Wagtail-Tyrant
- Lesser Wagtail Tyrant
- Lesser Wallacean Drongo
- Lesser Whistling-Duck
- Lesser Whistling Duck
- Lesser Whistling Teal
- Lesser White-fronted Goose
- Lesser Whitethroat
- Lesser Wood-shrike
- Lesser Woodcreeper
- Lesser Woodswallow
- Lesser Wren-Babbler
- Lesser Wren Babbler
- Lesser Yellow-headed Vulture
- Lesser Yellow-naped Woodpecker
- Lesser Yellowlegs
- Lesser Yellownape
- Lesson's Motmot
- Lesson's Seedeater
- Lessonia
- Lessonia oreas
- Lessonia rufa
- Lesvos
- Leti
- Letitia's Thorntail
- Letter-winged Kite
- Lettered Aracari
- Leucippus
- Leucippus baeri
- Leucippus chionogaster
- Leucippus chlorocercus
- Leucippus fallax
- Leucippus hypostictus
- Leucippus taczanowskii
- Leucippus viridicauda
- Leucocarbo
- Leucocarbo albiventer
- Leucocarbo atriceps
- Leucocarbo bougainvillii
- Leucocarbo bransfieldensis
- Leucocarbo campbelli
- Leucocarbo carunculatus
- Leucocarbo chalconotus
- Leucocarbo colensoi
- Leucocarbo fuscescens
- Leucocarbo georgianus
- Leucocarbo melanogenis
- Leucocarbo nivalis
- Leucocarbo onslowi
- Leucocarbo purpurascens
- Leucocarbo ranfurlyi
- Leucocarbo stewarti
- Leucocarbo verrucosus
- Leucochloris
- Leucochloris albicollis
- Leucodioptron
- Leucodioptron canorum
- Leucodioptron taewanum
- Leucogeranus
- Leucogeranus leucogeranus
- Leuconotopicus
- Leuconotopicus albolarvatus
- Leuconotopicus arizonae
- Leuconotopicus borealis
- Leuconotopicus fumigatus
- Leuconotopicus stricklandi
- Leuconotopicus villosus
- Leucopeza
- Leucopeza semperi
- Leucophaeus
- Leucophaeus atricilla
- Leucophaeus atricilla megalopterus
- Leucophaeus fuliginosus
- Leucophaeus modestus
- Leucophaeus pipixcan
- Leucophaeus scoresbii
- Leucopsar
- Leucopsar rothschildi
- Leucopternis
- Leucopternis albicollis
- Leucopternis albicollis albicollis
- Leucopternis kuhli
- Leucopternis lacernulata
- Leucopternis lacernulatus
- Leucopternis melanops
- Leucopternis occidentalis
- Leucopternis plumbea
- Leucopternis plumbeus
- Leucopternis polionota
- Leucopternis polionotus
- Leucopternis princeps
- Leucopternis schistacea
- Leucopternis schistaceus
- Leucopternis semiplumbea
- Leucopternis semiplumbeus
- Leucosarcia
- Leucosarcia melanoleuca
- Leucosarcia picata
- Leucosticte
- Leucosticte arctoa
- Leucosticte atrata
- Leucosticte australis
- Leucosticte brandti
- Leucosticte nemoricola
- Leucosticte sillemi
- Leucosticte tephrocotis
- Leukerbad
- Leukerfeld
- Leupold Golden Ring 15-30x50mm
- Levaillant's Cisticola
- Levaillant's Cuckoo
- Levaillant's Woodpecker
- Levant Sparrowhawk
- Levantine Shearwater
- Levantine Sparrowhawk
- Lewin's Honeyeater
- Lewin's Rail
- Lewinia
- Lewinia mirifica
- Lewinia mirificus
- Lewinia muelleri
- Lewinia pectoralis
- Lewis
- Lewis' Woodpecker
- Lewis's Woodpecker
- Leyte Plumed-Warbler
- Leyte Plumed Warbler


