- Razorbill
- Red-and-yellow Barbet
- Red-bellied Parrot
- Red-billed Firefinch
- Red-billed Oxpecker
- Red-billed Teal
- Red-billed Tropicbird
- Red-breasted Nuthatch
- Red-breasted Toucan
- Red-capped Lark
- Red-cheeked Cordon-bleu
- Red-chested Sunbird
- Red-cowled Widowbird
- Red-crested Korhaan
- Red-crowned Parakeet
- Red-eyed Dove
- Red-faced Crombec
- Red-footed Booby
- Red-knobbed Coot
- Red-legged Honeycreeper
- Red-necked Grebe
- Red-necked Spurfowl
- Red-tailed Hawk
- Red Knot
- Red Wattlebird
- Redwing
- Reed Cormorant
- Resplendent Quetzal
- Retz's Helmetshrike
- Ring-billed Gull
- Ring-necked Dove
- Rivoli's Hummingbird
- Rock Shag
- Roseate Spoonbill
- Rosy-faced Lovebird
- Rosy-throated Longclaw
- Royal Spoonbill
- Royal Tern
- Ruddy Turnstone
- Rufescent Tiger Heron
- Ruff
- Rufous-collared Sparrow
- Rufous-naped Lark
- Rufous-tailed Hummingbird
- Rufous-tailed Weaver
- Rüppell's Robin-Chat
- Rüppell's Starling
- Rüppell's Vulture