| Common Name | Scientific name |
|---|---|
| Ridgway's Hawk | Buteo ridgwayi |
| Ridgway's Rail | Rallus obsoletus |
| Ring Ouzel | Turdus torquatus |
| Ring-billed Gull | Larus delawarensis |
| Ring-necked Duck | Aythya collaris |
| Ring-tailed Pigeon | Patagioenas caribaea |
| Ringed Kingfisher | Megaceryle torquata |
| Ringed Storm-Petrel | Oceanodroma hornbyi |
| Ringed Teal | Callonetta leucophrys |
| River Warbler | Locustella fluviatilis |
| Riverside Wren | Cantorchilus semibadius |
| Rivoli's Hummingbird | Eugenes fulgens |
| Roadside Hawk | Rupornis magnirostris |
| Roble / Guayacan rosada | Tabebuia rosea |
| Rock Bunting | Emberiza cia |
| Rock Dove | Columba livia |
| Rock Partridge | Alectoris graeca |
| Rock Pipit | Anthus petrosus |
| Rock Ptarmigan | Lagopus muta |
| Rock Sandpiper | Calidris ptilocnemis |
| Rock Wren | Salpinctes obsoletus |
| Rook | Corvus frugilegus |
| Rose-bellied Bunting | Passerina rositae |
| Rose-breasted Grosbeak | Pheucticus ludovicianus |
| Rose-ringed Parakeet | Psittacula krameri |
RingBase adheres to EURING codes.
