| Common Name | Scientific name |
|---|---|
| Little Curlew | Numenius minutus |
| Little Egret | Egretta garzetta |
| Little Grebe | Tachybaptus ruficollis |
| Little Green Bee-eater | Merops orientalis |
| Little Gull | Hydrocoloeus minutus |
| Little Owl | Athene noctua |
| Little Ringed Plover | Charadrius dubius |
| Little Stint | Calidris minuta |
| Little Swift | Apus affinis |
| Little Tern | Sternula albifrons |
| Little Tinamou | Crypturellus soui |
| Loggerhead Kingbird | Tyrannus caudifasciatus |
| Loggerhead Shrike | Lanius ludovicianus |
| Lonchocarpus spp. | Lonchocarpus spp |
| Long-billed Curlew | Numenius americanus |
| Long-billed Dowitcher | Limnodromus scolopaceus |
| Long-billed Gnatwren | Ramphocaenus melanurus |
| Long-billed Hermit | Phaethornis longirostris |
| Long-billed Murrelet | Brachyramphus perdix |
| Long-billed Starthroat | Heliomaster longirostris |
| Long-billed Thrasher | Toxostoma longirostre |
| Long-eared Owl | Asio otus |
| Long-legged Buzzard | Buteo rufinus |
| Long-tailed Duck | Clangula hyemalis |
| Long-tailed Glossy Starling | Lamprotornis caudatus |
RingBase adheres to EURING codes.
