- Racket-tailed Treepie
- Raffles's Malkoha
- Razorbill
- Red-backed Shrike
- Red-billed Chough
- Red-billed Tropicbird
- Red-breasted Merganser
- Red-breasted Nuthatch
- Red-breasted Parakeet
- Red-crested Korhaan
- Red-crested Pochard
- Red-crowned Crane
- Red-footed Falcon
- Red-knobbed Coot
- Red-legged Partridge
- Red-necked Grebe
- Red-necked Phalarope
- Red-rumped Swallow
- Red-throated Loon
- Red-throated Pipit
- Red-wattled Lapwing
- Red-whiskered Bulbul
- Red-winged Blackbird
- Red Crossbill
- Red Kite
- Red Knot
- Red Phalarope
- Retz's Helmetshrike
- Ring-billed Gull
- Ring Ouzel
- Ringed Teal
- Rock Bunting
- Rock Ptarmigan
- Rook
- Rosy-billed Pochard
- Rosy Starling
- Rough-legged Buzzard
- Ruby-throated Hummingbird
- Ruddy Shelduck
- Ruddy Turnstone
- Ruff
- Rufous-crowned Tody-Flycatcher
- Rufous-eared Warbler
- Rufous-tailed Scrub Robin
- Rufous-throated Tanager
- Rufous Motmot
- Rüppell's Warbler