- Racket-tailed Treepie
- Radde's Warbler
- Raggiana Bird-of-paradise
- Rainbow Bee-eater
- Rainbow Lorikeet
- Rainforest Scops Owl
- Raja Ampat Pitohui
- Rattling Cisticola
- Razorbill
- Red-backed Kingfisher
- Red-backed Shrike
- Red-backed Thrush
- Red-bearded Bee-eater
- Red-bellied Grackle
- Red-billed Buffalo Weaver
- Red-billed Chough
- Red-billed Emerald
- Red-billed Firefinch
- Red-billed Oxpecker
- Red-billed Parrot
- Red-billed Quelea
- Red-billed Teal
- Red-billed Tropicbird
- Red-breasted Flycatcher
- Red-breasted Goose
- Red-breasted Meadowlark
- Red-breasted Merganser
- Red-breasted Paradise Kingfisher
- Red-breasted Parakeet
- Red-breasted Swallow
- Red-browed Finch
- Red-browed Pardalote
- Red-capped Coua
- Red-capped Flowerpecker
- Red-capped Lark
- Red-capped Manakin
- Red-capped Plover
- Red-capped Robin
- Red-capped Robin-Chat
- Red-cheeked Cordon-bleu
- Red-cheeked Parrot
- Red-chested Cuckoo
- Red-chested Sunbird
- Red-collared Myzomela
- Red-collared Widowbird
- Red-crested Cardinal
- Red-crested Korhaan
- Red-crested Pochard
- Red-crowned Parakeet
- Red-crowned Woodpecker
- Red-eared Fruit Dove
- Red-eyed Dove
- Red-eyed Vireo
- Red-faced Cisticola
- Red-faced Mousebird
- Red-faced Spinetail
- Red-faced Woodland Warbler
- Red-flanked Bluetail
- Red-flanked Lorikeet
- Red-footed Booby
- Red-footed Falcon
- Red-fronted Coot
- Red-fronted Prinia
- Red-fronted Serin
- Red-fronted Tinkerbird
- Red-gartered Coot
- Red-headed Barbet
- Red-headed Bluebill
- Red-headed Bunting
- Red-headed Finch
- Red-headed Lovebird
- Red-headed Malimbe
- Red-headed Quelea
- Red-headed Trogon
- Red-headed Vulture
- Red-keeled Flowerpecker
- Red-kneed Dotterel
- Red-knobbed Coot
- Red-knobbed Imperial Pigeon
- Red-legged Partridge
- Red-legged Seriema
- Red-legged Thrush
- Red-lored Amazon
- Red-lored Whistler
- Red-mantled Rosefinch
- Red-naped Ibis
- Red-necked Avocet
- Red-necked Falcon
- Red-necked Grebe
- Red-necked Phalarope
- Red-necked Spurfowl
- Red-necked Stint
- Red-ruffed Fruitcrow
- Red-rumped Parrot
- Red-rumped Swallow
- Red-rumped Tinkerbird
- Red-rumped Woodpecker
- Red-shouldered Vanga
- Red-tailed Hawk
- Red-tailed Shrike
- Red-tailed Vanga
- Red-tailed Wheatear
- Red-throated Ant Tanager
- Red-throated Loon
- Red-throated Piping Guan
- Red-throated Pipit
- Red-throated Thrush
- Red-throated Wryneck
- Red-vented Bulbul
- Red-vented Cockatoo
- Red-vented Malimbe
- Red-wattled Lapwing
- Red-whiskered Bulbul
- Red-winged Prinia
- Red-winged Starling
- Red-winged Tinamou
- Red Avadavat
- Red Bird-of-paradise
- Red Collared Dove
- Red Crossbill
- Red Fody
- Red Junglefowl
- Red Kite
- Red Knot
- Red Phalarope
- Red Pileated Finch
- Red Shoveler
- Red Wattlebird
- Redthroat
- Redwing
- Reed Cormorant
- Reeves's Pheasant
- Regal Sunbird
- Regent Parrot
- Regent Whistler
- Resplendent Quetzal
- Restless Flycatcher
- Retz's Helmetshrike
- Ribbon-tailed Astrapia
- Richard's Pipit
- Ridgway's Hawk
- Rifleman
- Ring-billed Gull
- Ring-necked Dove
- Ring-necked Duck
- Ring Ouzel
- Ringed Kingfisher
- Ringed Teal
- Ringed Warbling Finch
- River Lapwing
- River Tern
- River Warbler
- Roadside Hawk
- Rock Bunting
- Rock Bush Quail
- Rock Kestrel
- Rock Martin
- Rock Shag
- Rock Sparrow
- Rook
- Rose-breasted Grosbeak
- Rose-ringed Parakeet
- Rose Robin
- Roseate Spoonbill
- Roseate Tern
- Ross's Turaco
- Rosy-billed Pochard
- Rosy-patched Bushshrike
- Rosy Bee-eater
- Rosy Minivet
- Rosy Pipit
- Rosy Starling
- Rosy Thrush-tanager
- Rough-legged Buzzard
- Royal Spoonbill
- Royal Tern
- Ruby-throated Hummingbird
- Rudd's Apalis
- Rudd's Lark
- Ruddy-breasted Seedeater
- Ruddy-capped Nightingale-Thrush
- Ruddy-tailed Flycatcher
- Ruddy Duck
- Ruddy Ground Dove
- Ruddy Kingfisher
- Ruddy Shelduck
- Ruddy Turnstone
- Rufescent Imperial Pigeon
- Rufescent Tiger Heron
- Ruff
- Rufous-and-white Wren
- Rufous-backed Sibia
- Rufous-banded Honeyeater
- Rufous-banded Miner
- Rufous-banded Owl
- Rufous-bellied Eagle
- Rufous-bellied Kookaburra
- Rufous-bellied Seedsnipe
- Rufous-bellied Thrush
- Rufous-bellied Triller
- Rufous-bellied Woodpecker
- Rufous-breasted Accentor
- Rufous-breasted Antthrush
- Rufous-breasted Chat-Tyrant
- Rufous-breasted Hermit
- Rufous-breasted Wren
- Rufous-browed Conebill
- Rufous-browed Peppershrike
- Rufous-collared Sparrow
- Rufous-crowned Tody-Flycatcher
- Rufous-eared Warbler
- Rufous-fronted Bushtit
- Rufous-fronted Parakeet
- Rufous-fronted Prinia
- Rufous-fronted Tailorbird
- Rufous-gorgeted Flycatcher
- Rufous-headed Ground Roller
- Rufous-headed Pygmy Tyrant
- Rufous-legged Owl
- Rufous-naped Bellbird
- Rufous-naped Lark
- Rufous-sided Broadbill
- Rufous-sided Honeyeater
- Rufous-tailed Hummingbird
- Rufous-tailed Jacamar
- Rufous-tailed Lark
- Rufous-tailed Plantcutter
- Rufous-tailed Scrub Robin
- Rufous-tailed Tailorbird
- Rufous-throated Wren-Babbler
- Rufous-vented Chachalaca
- Rufous-vented Grass Babbler
- Rufous-vented Yuhina
- Rufous-winged Cisticola
- Rufous-winged Fulvetta
- Rufous-winged Tanager
- Rufous Bristlebird
- Rufous Coucal
- Rufous Fieldwren
- Rufous Hornbill
- Rufous Hornero
- Rufous Motmot
- Rufous Mourner
- Rufous Paradise Flycatcher
- Rufous Songlark
- Rufous Treecreeper
- Rufous Treepie
- Rufous Vanga
- Rufous Whistler
- Running Coua
- Rüppell's Black Chat
- Rüppell's Starling
- Rüppell's Vulture
- Rüppell's Weaver
- Russet-backed Oropendola
- Russet-throated Puffbird
- Russet Sparrow
- Rusty-backed Monjita
- Rusty-breasted Cuckoo
- Rusty-fronted Barwing
- Rusty-fronted Tody-Flycatcher
- Rusty-margined Flycatcher
- Rusty-winged Antwren
- Rusty-winged Barbtail
- Rusty Flowerpiercer
- Rusty Mouse-warbler
- Rwenzori Apalis
- Rwenzori Batis