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Lagopus lagopus - Willow Ptarmigan - Lagopède des saules
Lagopus muta – Rock Ptarmigan - Lagopède alpin
Lagopus scotica - Red Grouse - Lagopède d’Ecosse
Lalage newtoni - Reunion Cuckooshrike - Echenilleur de la Réunion
Lalage typica - Mauritius Cuckooshrike - Echenilleur de Maurice
Lamprotornis superbus – Superb Starling - Choucador superbe
Lanius borealis - Northern Shrike - Pie-grièche boréale
Lanius collurio – Red-backed Shrike - Pie-grièche écorcheur
Lanius cristatus - Brown Shrike – Pie-grièche brune
Lanius excubitor - Great Grey Shrike - Pie-grièche grise
Lanius ludovicianus – Loggerhead Shrike - Pie grièche migratrice
Lanius meridionalis – Southern Grey Shrike – Pie grièche méridionale
Lanius schach – Long-tailed Shrike - Pie-grièche schach
Lanius senator - Woodchat Shrike - Pie-grièche à tête rousse
Larosterna inca - Inca Tern - Sterne Inca
Larus argentatus – Herring Gull – Goéland argenté
Larus canus - Mew Gull or Common Gull - Goéland cendré
Larus crassirostris - Black-tailed Gull - Goéland à queue noire
Larus delawarensis – Ring-billed Gull - Goéland à bec cerclé
Larus dominicanus – Kelp Gull - Goéland dominicain
Larus fuscus – Lesser Black-backed Gull – Goéland brun
Larus glaucescens - Glaucous-winged Gull - Goéland à ailes grises
Larus glaucoides – Iceland Gull - Goéland arctique
Larus heermanni – Heermann’s Gull – Goéland de Heermann
Larus hyperboreus - Glaucous Gull - Goéland bourgmestre
Larus marinus – Great Black-backed Gull – Goéland marin
Larus michahellis – Yellow-legged Gull - Goéland leucophée
Larus occidentalis – Western Gull – Goéland d’Audubon
Larus pacificus – Pacific Gull - Goéland austral
Larus schistisagus - Slaty-backed Gull - Goéland à manteau ardoisé
Larvivora cyane - Siberian Blue Robin - Rossignol bleu
Larvivora sibilans - Rufous-tailed Robin - Rossignol siffleur
Laterallus melanophaius – Rufous-sided Crake - Râle brunoir
Laterallus spilonotus – Galapagos Rail - Râle des Galápagos
Laterallus tuerosi - Junin Rail - Râle du Junín
Leiothlypis celata – Orange-crowned Warbler - Paruline verdâtre
Leiothlypis peregrina - Tennessee Warbler - Paruline obscure
Leiothlypis ruficapilla – Nashville Warbler - Paruline à joues grises
Lepidopygia nana - Madagascan Mannikin - Capucin de Madagascar
Leptasthenura yanacensis - Tawny Tit-Spinetail - Synallaxe fauve
Leptopterus chabert - Chabert’s Vanga - Artamie chabert
Leptoptilos crumenifer - Marabou Stork - Marabout d’Afrique
Leptoptilos dubius – Greater Adjutant - Marabout argala
Leptoptilos javanicus – Lesser Adjutant - Marabout chevelu
Lerwa lerwa - Snow Partridge - Lerva des neiges
Lessonia rufa - Austral Negrito - Lessonie noire
Leucocarbo atriceps - Imperial Shag - Cormoran impérial
Leucocarbo bougainvillii – Guanay Cormorant – Cormoran de Bougainville
Leucocarbo bransfieldensis - Antarctic Shag - Cormoran antarctique
Leucocarbo campbelli – Campbell Shag - Cormoran de Campbell
Leucocarbo carunculatus - Rough-faced Shag - Cormoran caronculé
Leucocarbo chalconotus – Bronze Shag or Stewart Island Shag - Cormoran bronzé
Leucocarbo colensoi – Auckland (Island) Shag - Cormoran des Auckland
Leucocarbo georgianus - South Georgia Shag - Cormoran géorgien
Leucocarbo melanogenis – Crozet Shag - Cormoran de Crozet
Leucocarbo nivalis - Heard Shag - Cormoran de Heard
Leucocarbo onslowi – Chatham (Island) Shag - Cormoran des Chatham
Leucocarbo purpurascens - Macquarie Shag - Cormoran de Macquarie
Leucocarbo ranfurlyi - Bounty Island Shag - Cormoran de Bounty
Leucocarbo stewarti - Foveaux Shag - Cormoran de Foveaux
Leucocarbo verrucosus - Kerguelen Shag - Cormoran des Kerguelen
Leucogeranus leucogeranus - Siberian Crane - Grue de Sibérie
Leucophaeus atricilla – Laughing Gull - Mouette atricille
Leucophaeus fuliginosus – Lava Gull - Mouette obscure
Leucophaeus pipixcan - Franklin’s Gull - Mouette de Franklin
Leucophaeus scoresbii – Dolphin Gull - Goéland de Scoresby
Leucopsar rothschildi – Bali Myna - Etourneau de Rothschild
Leucopternis melanops – Black-faced Hawk - Buse à face noire
Leucosarcia melanoleuca – Wonga Pigeon - Colombine wonga
Leucosticte tephrocotis - Grey-crowned Rosy-Finch - Roselin à tête grise
Lewinia muelleri - Auckland Island Rail - Râle des Auckland
Limicola falcinellus - Broad-billed Sandpiper - Bécasseau falcinelle
Limnodromus griseus - Short-billed Dowitcher - Bécassin roux
Limnodromus scolopaceus – Long-billed Dowitcher - Bécassin à long bec
Limosa fedoa - Marbled Godwit - Barge marbrée
Limosa haemastica – Hudsonian Godwit - Barge hudsonienne
Limosa lapponica – Bar-tailed Godwit - Barge rousse
Limosa limosa – Black-tailed Godwit - Barge à queue noire
Linaria cannabina – Common Linnet - Linotte mélodieuse
Locustella fluviatilis – (Eurasian) River Warbler - Locustelle fluviatile
Locustella lanceolata - Lanceolated Warbler - Locustelle lancéolée
Loddigesia mirabilis - Marvelous Spatuletail - Loddigésie admirable
Lophaetus occipitalis – Long-crested Eagle - Aigle huppard
Lophodytes cucullatus - Hooded Merganser - Harle couronné
Lophonetta specularioides - Crested Duck - Canard huppé
Lophophanes cristatus – Crested Tit - Mésange huppée
Lophornis helenae - Black-crested Coquette - Coquette d’Hélène
Lophornis ornatus – Tufted Coquette - Coquette huppe-col
Lophornis stictolophus - Spangled Coquette - Coquette pailletée
Lophostrix cristata – Crested Owl - Duc à aigrettes
Lophotibis cristata - Madagascar Crested Ibis - Ibis huppé
Lophura leucomelanos - Kalij Pheasant - Faisan leucomèle
Lophura nycthemera – Silver Pheasant - Faisan argenté
Loriculus beryllinus - Sri Lanka Hanging Parrot - Coryllis de Ceylan
Loxia curvirostra – Red Crossbill - Bec-croisé des sapins
Loxia leucoptera – White-winged Crossbill - Bec-croisé bifascié
Loxia scotica - Scottish Crossbill - Bec-croisé d’Ecosse
Loxia pytyopsittacus - Parrot Crossbill - Bec-croisé perroquet
Loxigilla noctis - Lesser Antillean Bullfinch - Sporophile rougegorge
Loxigilla portoricensis - Puerto Rican Bullfinch - Sporophile de Porto Rico
Loxipasser anoxanthus - Yellow-shouldered Grassquit - Sporophile mantelé
Lullula arborea – Woodlark - Alouette lulu
Luscinia svecica – Bluethroat - Gorgebleue à miroir
Luscinia megarhynchos - Common Nightingale - Rossignol philomèle
Lymnocryptes minimus - Jack Snipe - Bécassine sourde