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Ladder-backed Woodpecker – Picoides scalaris – Pic arlequin
Ladder-tailed Nightjar - Hydropsalis climacocerca - Engoulevent trifide
Lady Amherst’s Pheasant - Chrysolophus amherstiae - Faisan de Lady Amherst
Lafresnaye's Vanga - Xenopirostris xenopirostris - Vanga de Lafresnaye
Lake Duck - Oxyura vittata - Erismature ornée
Lanceolated Warbler - Locustella lanceolata - Locustelle lancéolée
Lapland Longspur - Calcarius lapponicus - Bruant lapon ou Plectrophane lapon
Lappet-faced Vulture – Torgos tracheliotus – Vautour oricou
Large-billed Seed-Finch - Oryzoborus crassirostris - Sporophile crassirostre
Large-billed Tern - Phaetusa simplex - Sterne à gros bec
Large Cactus-Finch - Geospiza conirostris - Géospize à bec conique
Large Ground Finch – Geospiza magnirostris – Géospize à gros bec
Large-tailed Nightjar - Caprimulgus macrurus - Engoulevent de Horsfield
Large Tree Finch – Camarhynchus psittacula – Géospize psittacin
Lark Bunting – Calamospiza melanocorys – Bruant noir et blanc
Lark Sparrow – Chondestes grammacus – Bruant à joues marron
Laughing Dove - Streptopelia senegalensis - Tourterelle maillée
Laughing Falcon – Herpetotheres cachinnans – Macagua rieur
Laughing Gull - Leucophaeus atricilla - Mouette atricille
Laurel Pigeon - Columba junoniae – Pigeon des lauriers
Lava Gull - Leucophaeus fuliginosus - Mouette obscure
Lawrence’s Goldfinch – Spinus lawrencei – Chardonneret gris
Layard's Parakeet - Psittacula calthrapae - Perruche de Layard
Laysan Albatross - Phoebastria immutabilis - Albatros de Laysan
Laysan Duck - Anas laysanensis - Canard de Laysan
Lazuli Bunting - Passerina amoena - Passerin azuré
Leach’s Storm-Petrel - Hydrobates leucorhous - Océanite cul-blanc
Lear’s Macaw or Indigo Macaw - Anodorhynchus leari - Ara de Lear
Least Auklet - Aethia pusilla - Starique minuscule
Least Bittern – Ixobrychus exilis – Petit blongios
Least Flycatcher - Empidonax minimus - Moucherolle tchébec
Least Grebe - Tachybaptus dominicus - Grèbe minime
Least Sandpiper - Calidris minutilla - Bécasseau minuscule
Least Seedsnipe - Thinocorus rumicivorus - Thinocore de Patagonie
Least Tern - Sternula antillarum – Petite Sterne
LeConte's Sparrow - Ammospiza leconteii - Bruant de LeConte
Lesser Adjutant - Leptoptilos javanicus - Marabout chevelu
Lesser Antillean Bullfinch - Loxigilla noctis - Sporophile rougegorge
Lesser Antillean Pewee - Contopus latirostris - Moucherolle gobemouche
Lesser Bird-of-paradise - Paradisaea minor - Paradisier petit-émeraude
Lesser Black-backed Gull – Larus fuscus – Goéland brun
Lesser Flamingo - Phoeniconaias minor - Flamant nain
Lesser Frigatebird - Fregata ariel - Frégate ariel
Lesser Kestrel - Falco naumanni - Faucon crécerellette
Lesser Nighthawk - Chordeiles acutipennis - Engoulevent minime
Lesser Noddy - Anous tenuirostris - Noddi marianne
Lesser Prairie-chicken - Tympanuchus pallidicinctus - Tétras pâle
Lesser Rhea - Rhea pennata - Nandou de Darwin
Lesser Sand-Plover - Charadrius mongolus - Gravelot mongol ou Pluvier de Mongolie
Lesser Scaup - Aythya affinis - Petit Fuligule
Lesser Spotted Woodpecker - Dryobates minor - Pic épeichette
Lesser White-fronted Goose - Anser erythropus – Oie naine
Lesser Whitethroat - Curruca curruca – Fauvette babillarde
Lesser Yellow-headed Vulture - Cathartes burrovianus - Urubu à tête jaune
Lesser Yellowlegs - Tringa flavipes - Chevalier à pattes jaunes
Letter-winged Kite - Elanus scriptus - Elanion lettré
Levaillant’s Cuckoo - Clamator levaillantii - Coucou de Levaillant
Lewis’s Woodpecker – Melanerpes lewis – Pic de Lewis
Lidth’s Jay - Garrulus lidthi - Geai de Lidth
Light-mantled Albatross - Phoebetria palpebrata - Albatros fuligineux
Lilac-breasted Roller – Coracias caudate – Rollier à longs brins
Limpkin – Aramus guarauna – Courlan brun
Lincoln’s Sparrow – Melospiza lincolnii – Bruant de Lincoln
Lineated Woodpecker – Dryocopus lineatus – Pic ouentou
Little Auk or Dovekie - Alle alle - Mergule nain
Little Black Cormorant – Phalacrocorax sulcirostris – Cormoran noir
Little Blue Heron – Egretta caerulea – Aigrette bleue
Little Bunting - Emberiza pusilla - Bruant nain
Little Bustard - Tetrax tetrax - Outarde canepetière
Little Corella or Little Cockatoo - Cacatua sanguinea - Cacatoès corella
Little Eagle – Hieraaetus morphnoides – Aigle nain
Little Egret – Egretta garzetta – Aigrette garzette
Little Grebe - Tachybaptus ruficollis - Grèbe castagneux
Little Gull - Hydrocoloeus minutus - Mouette pygmée
Little Owl - Athene noctua - Chevêche d’Athéna
Little Penguin - Eudyptula minor - Manchot pygmée
Little Pied Cormorant - Microcarbo melanoleucos - Cormoran pie
Little Ringed Plover - Charadrius dubius - Petit gravelot
Little Shearwater - Puffinus assimilis - Petit Puffin
Little Stint - Calidris minuta - Bécasseau minute
Little Tern - Sternula albifrons - Sterne naine
Little Woodpecker - Veniliornis passerinus - Pic passerin
Littoral Rock Thrush - Monticola imerina - Monticole du littoral
Lizard Buzzard - Kaupifalco monogrammicus - Autour unibande
Loggerhead Shrike - Lanius ludovicianus - Pie grièche migratrice
Long-billed Bernieria - Bernieria madagascariensis - Bulbul tétraka
Long-billed Black Cockatoo – Calyptorhynchus baudinii – Cacatoès de Baudin
Long-billed Corella – Cacatua tenuirostris – Cacatoès nasique
Long-billed Crombec - Sylvietta rufescens - Crombec à long bec
Long-billed Dowitcher - Limnodromus scolopaceus - Bécassin à long bec
Long-billed Murrelet - Brachyramphus perdix - Guillemot à long bec
Long-billed Thrasher - Toxostoma longirostre - Moqueur à long bec
Long-billed Thrush - Zoothera monticola - Grive montagnarde
Long-billed Vulture – Gyps indicus – Vautour Indien
Long-crested Eagle - Lophaetus occipitalis - Aigle huppard
Long-eared Owl – Asio otus - Hibou moyen-duc
Long-tailed Cormorant or Reed Cormorant - Microcarbo africanus - Cormoran africain
Long-tailed Cuckoo or Koel - Urodynamis taitensis - Coucou de Nouvelle Zélande
Long-tailed Duck - Clangula hyemalis - Harelde boréale
Long-tailed Ground-Roller - Uratelornis chimaera - Brachyptérolle à longue queue
Long-tailed Jaeger - Stercorarius longicaudus - Labbe à longue queue
Long-tailed Meadowlark -Sturnella loyca - Sturnelle australe
Long-tailed Potoo - Nyctibius aethereus - Ibijau à longue queue
Long-tailed Shrike – Lanius schach – Pie-grièche schach
Long-tailed Silky-flycatcher - Ptiliogonys caudatus - Ptilogon à longue queue
Long-tailed Sylph - Aglaiocercus kingii - Sylphe à queue d’azur
Long-tailed Tit – Aegithalos caudatus – Mésange (Orite) à longue queue
Long-tailed Tyrant - Colonia colonus - Moucherolle à longs brins
Long-toed Stint - Calidris subminuta - Bécasseau à longs doigts
Long-wattled Umbrellabird - Cephalopterus penduliger - Coracine casquée
Long-whiskered Owlet - Xenoglaux loweryi - Chevêchette nimbée
Long-winged Harrier - Circus buffoni - Busard de Buffon
Louisiana Waterthrush – Parkesia motacilla – Paruline hochequeue
Lyre-tailed Nightjar - Uropsalis lyra - Engoulevent lyre