- Red-bearded Bee-eater
- Red-bellied Woodpecker
- Red-billed Oxpecker
- Red-breasted Sapsucker
- Red-capped Cardinal
- Red-crested Cardinal
- Red-crowned Barbet
- Red-eyed Vireo
- Red-footed Booby
- Red-headed Barbet
- Red-headed Bunting
- Red-headed Lovebird
- Red-legged Thrush
- Red-naped Sapsucker
- Red-tailed Hawk
- Red-winged Blackbird
- Red Crossbill
- Red Fox Sparrow
- Red Junglefowl
- Red Tanager
- Ridgway's Hawk
- Ringed Kingfisher
- Ringed Teal
- Riverside Wren
- Rock Ptarmigan
- Rock Wren
- Rose-breasted Grosbeak
- Roseate Spoonbill
- Ross's Goose
- Ross's Gull
- Ruddy Duck
- Ruddy Quail-Dove
- Ruddy Turnstone
- Rufous-and-white Wren
- Rufous-breasted Wren
- Rufous-browed Wren
- Rufous-throated Dipper
- Rufous-throated Solitaire
- Rufous Hummingbird
- Rufous Wren
- Ryukyu Robin