- Rainbow Bee-eater
- Rainbow Pitta
- Rainforest Scops Owl
- Raja Shelduck
- Red-backed Fairywren
- Red-backed Kingfisher
- Red-bellied Fruit Dove
- Red-bellied Macaw
- Red-billed Buffalo Weaver
- Red-billed Firefinch
- Red-billed Teal
- Red-billed Tropicbird
- Red-breasted Blackbird
- Red-breasted Goose
- Red-breasted Sapsucker
- Red-browed Finch
- Red-browed Treecreeper
- Red-capped Cardinal
- Red-capped Coua
- Red-capped Parrot
- Red-capped Plover
- Red-capped Robin
- Red-cheeked Cordon-bleu
- Red-chested Cuckoo
- Red-collared Lorikeet
- Red-crested Pochard
- Red-crowned Woodpecker
- Red-eyed Vireo
- Red-fan Parrot
- Red-footed Booby
- Red-legged Cormorant
- Red-legged Honeycreeper
- Red-necked Avocet
- Red-necked Phalarope
- Red-necked Stint
- Red-necked Woodpecker
- Red-rumped Cacique
- Red-rumped Parrot
- Red-rumped Swallow
- Red-tailed Black Cockatoo
- Red-tailed Hawk
- Red-tailed Laughingthrush
- Red-tailed Vanga
- Red-throated Caracara
- Red-throated Loon
- Red-vented Bulbul
- Red-whiskered Bulbul
- Red-winged Blackbird
- Red-winged Fairywren
- Red-winged Parrot
- Red Goshawk
- Red Knot
- Red Tanager
- Red Wattlebird
- Reddish Hermit
- Redwing
- Restless Flycatcher
- Rifleman
- Ring-billed Gull
- Ring-necked Duck
- Ringed Antpipit
- Ringed Kingfisher
- Ringed Teal
- Roadside Hawk
- Rock Martin
- Rock Parrot
- Rock Wren
- Rose-crowned Fruit Dove
- Rose-ringed Parakeet
- Roseate Spoonbill
- Rosy-billed Pochard
- Royal Spoonbill
- Royal Tern
- Ruby-topaz Hummingbird
- Ruddy-breasted Seedeater
- Ruddy Duck
- Ruddy Ground Dove
- Ruddy Pigeon
- Ruddy Quail-Dove
- Ruddy Turnstone
- Rufescent Tiger Heron
- Ruff
- Ruffed Grouse
- Rufous-banded Honeyeater
- Rufous-breasted Hermit
- Rufous-collared Sparrow
- Rufous-rumped Foliage-gleaner
- Rufous-tailed Weaver
- Rufous-throated Antbird
- Rufous-throated Honeyeater
- Rufous-vented Chachalaca
- Rufous Bristlebird
- Rufous Crab Hawk
- Rufous Fantail
- Rufous Hummingbird
- Rufous Owl
- Rufous Songlark
- Rufous Treepie
- Rufous Whistler
- Running Coua
- Rüppell's Starling
- Rüppell's Vulture
- Russet-backed Oropendola
- Russet-crowned Crake
- Rusty-margined Flycatcher