| Bounty Shag Leucocarbo ranfurlyi | Suliformes / Phalacrocoracidae | VU |
| White-throated Hummingbird Leucochloris albicollis | Apodiformes / Trochilidae | LC |
| White-headed Woodpecker Leuconotopicus albolarvatus | Piciformes / Picidae | LC |
| Arizona Woodpecker Leuconotopicus arizonae | Piciformes / Picidae | LC |
| Red-cockaded Woodpecker Leuconotopicus borealis | Piciformes / Picidae | NT |
| Smoky-brown Woodpecker Leuconotopicus fumigatus | Piciformes / Picidae | LC |
| Strickland's Woodpecker Leuconotopicus stricklandi | Piciformes / Picidae | LC |
| Hairy Woodpecker Leuconotopicus villosus | Piciformes / Picidae | LC |
| Semper's Warbler Leucopeza semperi | Passeriformes / Parulidae | CR |
| Lava Gull Leucophaeus fuliginosus | Charadriiformes / Laridae | VU |
| Grey Gull Leucophaeus modestus | Charadriiformes / Laridae | LC |
| Dolphin Gull Leucophaeus scoresbii | Charadriiformes / Laridae | LC |
| Black-chinned Robin Leucophantes brachyurus | Passeriformes / Petroicidae | LC |
| Bali Starling Leucopsar rothschildi | Passeriformes / Sturnidae | CR |
| White-browed Hawk Leucopternis kuhli | Accipitriformes / Accipitridae | LC |
| Black-faced Hawk Leucopternis melanops | Accipitriformes / Accipitridae | LC |
| Semiplumbeous Hawk Leucopternis semiplumbeus | Accipitriformes / Accipitridae | LC |
| Wonga Pigeon Leucosarcia melanoleuca | Columbiformes / Columbidae | LC |
| Black Rosy Finch Leucosticte atrata | Passeriformes / Fringillidae | EN |
| Brown-capped Rosy Finch Leucosticte australis | Passeriformes / Fringillidae | EN |
| Grey-crowned Rosy Finch Leucosticte tephrocotis | Passeriformes / Fringillidae | LC |
| Brown-banded Rail Lewinia mirifica | Gruiformes / Rallidae | DD |
| Auckland Rail Lewinia muelleri | Gruiformes / Rallidae | VU |
| Lewin's Rail Lewinia pectoralis | Gruiformes / Rallidae | LC |
| Purple-gaped Honeyeater Lichenostomus cratitius | Passeriformes / Meliphagidae | LC |
| Yellow-tufted Honeyeater Lichenostomus melanops | Passeriformes / Meliphagidae | LC |
| Silver-eared Honeyeater Lichmera alboauricularis | Passeriformes / Meliphagidae | LC |
| Olive Honeyeater Lichmera argentauris | Passeriformes / Meliphagidae | LC |
| Buru Honeyeater Lichmera deningeri | Passeriformes / Meliphagidae | LC |
| Flame-eared Honeyeater Lichmera flavicans | Passeriformes / Meliphagidae | LC |
| Grey-eared Honeyeater Lichmera incana | Passeriformes / Meliphagidae | LC |
| Brown Honeyeater Lichmera indistincta | Passeriformes / Meliphagidae | LC |
| Scaly-crowned Honeyeater Lichmera lombokia | Passeriformes / Meliphagidae | LC |
| Seram Honeyeater Lichmera monticola | Passeriformes / Meliphagidae | LC |
| Black-necklaced Honeyeater Lichmera notabilis | Passeriformes / Meliphagidae | LC |
| Scaly-breasted Honeyeater Lichmera squamata | Passeriformes / Meliphagidae | LC |
| Straight-billed Reedhaunter Limnoctites rectirostris | Passeriformes / Furnariidae | NT |
| Sulphur-bearded Reedhaunter Limnoctites sulphuriferus | Passeriformes / Furnariidae | LC |
| Short-billed Dowitcher Limnodromus griseus | Charadriiformes / Scolopacidae | VU |
| Curve-billed Reedhaunter Limnornis curvirostris | Passeriformes / Furnariidae | LC |
| Swainson's Warbler Limnothlypis swainsonii | Passeriformes / Parulidae | LC |
| Marbled Godwit Limosa fedoa | Charadriiformes / Scolopacidae | VU |
| Hudsonian Godwit Limosa haemastica | Charadriiformes / Scolopacidae | VU |
| Warsangli Linnet Linaria johannis | Passeriformes / Fringillidae | NT |
| Yemen Linnet Linaria yemenensis | Passeriformes / Fringillidae | LC |
| Oriole Finch Linurgus olivaceus | Passeriformes / Fringillidae | LC |
| Rusty-belted Tapaculo Liosceles thoracicus | Passeriformes / Rhinocryptidae | LC |
| Black-and-gold Cotinga Lipaugus ater | Passeriformes / Cotingidae | LC |
| Grey-winged Cotinga Lipaugus conditus | Passeriformes / Cotingidae | VU |
| Dusky Piha Lipaugus fuscocinereus | Passeriformes / Cotingidae | LC |