| Common Name | Scientific name |
|---|---|
| Richard's Pipit | Anthus richardi |
| Rhinoceros Auklet | Cerorhinca monocerata |
| Resplendent Quetzal | Pharomachrus mocinno |
| Regent Parrot | Polytelis anthopeplus |
| Reeves's Pheasant | Syrmaticus reevesii |
| Redwing | Turdus iliacus |
| Redhead | Aythya americana |
| Reddish Egret | Egretta rufescens |
| Red-winged Blackbird | Agelaius phoeniceus |
| Red-whiskered Bulbul | Pycnonotus jocosus |
| Red-vented Bulbul | Pycnonotus cafer |
| Red-throated Thrush | Turdus ruficollis |
| Red-throated Pipit | Anthus cervinus |
| Red-throated Loon | Gavia stellata |
| Red-throated Caracara | Ibycter americanus |
| Red-throated Ant-Tanager | Habia fuscicauda |
| Red-tailed Tropicbird | Phaethon rubricauda |
| Red-tailed Minla | Minla ignotincta |
| Red-tailed Hawk | Buteo jamaicensis |
| Red-spotted Bluethroat | Luscinia svecica svecica |
| Red-shouldered Hawk | Buteo lineatus |
| Red-shouldered Blackbird | Agelaius assimilis |
| Red-rumped Woodpecker | Veniliornis kirkii |
| Red-rumped Swallow | Cecropis daurica |
| Red-rumped Parrot | Psephotus haematonotus |
RingBase adheres to EURING codes.
