- Regulus
- Regulus calendula
- Regulus goodfellowi
- Regulus ignicapilla
- Regulus ignicapillus
- Regulus madeirensis
- Regulus regulus
- Regulus regulus azoricus
- Regulus satrapa
- Regulus satrapa apache
- Regulus teneriffae
- Reichard's Canary
- Reichard's Seedeater
- Reichenbach's Sunbird
- Reichenow's Batis
- Reichenow's Firefinch
- Reichenow's Seedeater
- Reichenow's Woodpecker
- Reichenows's Seedeater
- Reindersmeer
- Reinwardt's Babbler
- Reinwardt's Blue-tailed Trogon
- Reinwardt's Toucanet
- Reinwardtipicus
- Reinwardtipicus validus
- Reinwardtoena
- Reinwardtoena browni
- Reinwardtoena crassirostris
- Reinwardtoena reinwardti
- Reinwardtoena reinwardtii
- Reischek's Parakeet
- Reiser's Tyrannulet
- Relict Gull
- Relict Raven
- Remiz
- Remiz consobrinus
- Remiz coronatus
- Remiz macronyx
- Remiz pendulinus
- Remizidae
- Renauld's Ground-Cuckoo
- Renauld's Ground Cuckoo
- Rennell Fantail
- Rennell Parrot
- Rennell Shrikebill
- Rennell Starling
- Rennell Whistler
- Rennell White-eye
- Republic of Congo
- Republic of the Congo
- Reseda Duck Pond
- Reseda Duck Pond(Reseda)
- Reserva Ecologica Rio Pachijal
- Reserva Ecologica Rio Pachijal(Mindo, Quito - Ecuador)
- Reserva Ecologica de Guapiacu
- Reserva Provincial Lagunas de Yala
- Reserva Provincial Lagunas de Yala(21 Km north of San Salvador de Jujuy - NW Argentin)
- Reserve of Tevere Farfa (Nazzano, Lazio, Italy)
- Resolute 55mm Angled Spotting Scope
- Resources Portal
- Resplendent Quetzal
- Restinga Antwren
- Restinga Tyrannulet
- Restless Flycatcher
- Restless Myiagra
- Retezat National Park
- Retezat National Park Romania
- Retz's Helmet-Shrike
- Retz's Helmet-shrike
- Retz's Helmetshrike
- Reunion
- Reunion Black Bulbul
- Reunion Bulbul
- Reunion Cuckoo-shrike
- Reunion Cuckooshrike
- Reunion Gray White-eye
- Reunion Grey White-eye
- Reunion Harrier
- Reunion Ibis
- Reunion Island
- Reunion Olive White-eye
- Reunion Parakeet
- Reunion Sheldgoose
- Reunion Solitaire
- Reunion Starling
- Reunion Stonechat
- Reunion White-eye
- Reynaud's Coua
- Rhabdornis
- Rhabdornis grandis
- Rhabdornis inornatus
- Rhabdornis mystacalis
- Rhabdornis mysticalis
- Rhabdornis rabori
- Rhabdornithidae
- Rhabdotorrhinus
- Rhabdotorrhinus corrugatus
- Rhabdotorrhinus exarhatus
- Rhabdotorrhinus leucocephalus
- Rhabdotorrhinus waldeni
- Rhadina bonelli
- Rhadina orientalis
- Rhadina sibilatrix
- Rhagologidae
- Rhagologus
- Rhagologus leucostigma
- Rhamphocharis
- Rhamphocharis crassirostris
- Rhamphococcyx
- Rhamphococcyx calyorhynchus
- Rhamphomantis
- Rhamphomantis megarhynchus
- Rhaphidura
- Rhaphidura leucopygialis
- Rhaphidura sabini
- Rhea
- Rhea americana
- Rhea pennata
- Rhea pennata pennata
- Rhea tarapacensis
- Rheas
- Rhegmatorhina
- Rhegmatorhina berlepschi
- Rhegmatorhina cristata
- Rhegmatorhina gymnops
- Rhegmatorhina hoffmannsi
- Rhegmatorhina melanosticta
- Rheidae
- Rheiformes
- Rheinardia
- Rheinardia ocellata
- Rheindelta Bodensee
- Rheindelta Bodensee, Western Austria
- Rhinluch(Berlin/Brandenburg)
- Rhinluch (Berlin/Brandenburg)
- Rhinoceros Auklet
- Rhinoceros Hornbill
- Rhinocichla
- Rhinocichla mitrata
- Rhinocichla treacheri
- Rhinocorax
- Rhinocrypta
- Rhinocrypta lanceolata
- Rhinocryptidae
- Rhinomyias
- Rhinomyias additus
- Rhinomyias albigularis
- Rhinomyias brunneata
- Rhinomyias brunneatus
- Rhinomyias colonus
- Rhinomyias goodfellowi
- Rhinomyias gularis
- Rhinomyias insignis
- Rhinomyias nicobaricus
- Rhinomyias olivacea
- Rhinomyias olivaceus
- Rhinomyias oscillans
- Rhinomyias ruficauda
- Rhinomyias umbratilis
- Rhinoplax
- Rhinoplax vigil
- Rhinopomastus
- Rhinopomastus aterrimus
- Rhinopomastus cyanomelas
- Rhinopomastus minor
- Rhinopomastus minor cabanisi
- Rhinoptilus
- Rhinoptilus africanus
- Rhinoptilus bitorquatus
- Rhinoptilus chalcopterus
- Rhinoptilus cinctus
- Rhinoptynx clamator
- Rhinortha
- Rhinortha chlorophaea
- Rhipidura
- Rhipidura Javanica
- Rhipidura albicollis
- Rhipidura albicollis atrata
- Rhipidura albiscapa
- Rhipidura albiscapa alisteri
- Rhipidura albiscapa bulgeri
- Rhipidura albiscapa pelzelni
- Rhipidura albiscapa preissi
- Rhipidura albiventris
- Rhipidura albogularis
- Rhipidura albolimbata
- Rhipidura atra
- Rhipidura aureola
- Rhipidura brachyrhyncha
- Rhipidura cockerelli
- Rhipidura cyaniceps
- Rhipidura dahli
- Rhipidura dedemi
- Rhipidura diluta
- Rhipidura drownei
- Rhipidura dryas
- Rhipidura euryura
- Rhipidura fuliginosa
- Rhipidura fuliginosa fuliginosa
- Rhipidura fuscorufa
- Rhipidura hyperythra
- Rhipidura hypoxantha
- Rhipidura javanica
- Rhipidura javanica longicauda
- Rhipidura kubaryi
- Rhipidura lepida
- Rhipidura leucophrys
- Rhipidura leucophrys picata
- Rhipidura leucothorax
- Rhipidura maculipectus
- Rhipidura malaitae
- Rhipidura matthiae
- Rhipidura nebulosa
- Rhipidura nigritorquis
- Rhipidura nigrocinnamomea
- Rhipidura opistherythra
- Rhipidura perlata
- Rhipidura personata
- Rhipidura phasiana
- Rhipidura phoenicura
- Rhipidura rennelliana
- Rhipidura rufidorsa
- Rhipidura rufifrons
- Rhipidura rufifrons intermedia
- Rhipidura rufiventris
- Rhipidura samarensis
- Rhipidura sauli
- Rhipidura semirubra
- Rhipidura spilodera
- Rhipidura superciliaris
- Rhipidura superflua
- Rhipidura tenebrosa
- Rhipidura teysmanni
- Rhipidura threnothorax
- Rhipidura verreauxi
- Rhipiduridae
- Rhizothera
- Rhizothera dulitensis
- Rhizothera longirostris
- Rhodacanthis
- Rhodacanthis flaviceps
- Rhodacanthis palmeri
- Rhode Island
- Rhodes
- Rhodes (Rhodos)
- Rhodes (Rhodos) Greece
- Rhodinocichla
- Rhodinocichla rosea
- Rhodinocichlidae
- Rhodonessa caryophyllacea
- Rhodopechys
- Rhodopechys alienus
- Rhodopechys githaginea
- Rhodopechys mongolica
- Rhodopechys obsoleta
- Rhodopechys sanguinea
- Rhodopechys sanguineus
- Rhodopechys sanguineus alienus
- Rhodophoneus
- Rhodophoneus cruentus
- Rhodopis
- Rhodopis vesper
- Rhodospingus
- Rhodospingus cruentus
- Rhodospiza
- Rhodospiza obsoleta
- Rhodostethia
- Rhodostethia Rosea
- Rhodostethia rosea
- Rhodothraupis
- Rhodothraupis celaeno
- Rhopias
- Rhopias gularis
- Rhopocichla
- Rhopocichla atriceps
- Rhopodytes sumatranus
- Rhopodytes tristis
- Rhopodytes viridirostris
- Rhopophilus
- Rhopophilus albosuperciliaris
- Rhopophilus pekinensis
- Rhopornis
- Rhopornis ardesiaca
- Rhopornis ardesiacus
- Rhopospina fruticeti
- Rhum
- Rhum Scotland
- Rhyacornis
- Rhyacornis bicolor
- Rhyacornis fuliginosa
- Rhyacornis fuliginosus
- Rhynchocyclus
- Rhynchocyclus brevirostris
- Rhynchocyclus fulvipectus
- Rhynchocyclus olivaceus
- Rhynchocyclus pacificus
- Rhynchophanes mccownii
- Rhynchopsitta
- Rhynchopsitta pachyrhyncha
- Rhynchopsitta terrisi
- Rhynchortyx
- Rhynchortyx cinctus
- Rhynchospiza
- Rhynchospiza stolzmanni
- Rhynchospiza strigiceps
- Rhynchostruthus
- Rhynchostruthus louisae
- Rhynchostruthus percivali
- Rhynchostruthus socotranus
- Rhynchothraupis
- Rhynchotus
- Rhynchotus maculicollis
- Rhynchotus rufescens
- Rhynochetidae
- Rhynochetos
- Rhynochetos jubatus
- Rhyticeros
- Rhyticeros cassidix
- Rhyticeros everetti
- Rhyticeros narcondami
- Rhyticeros plicatus
- Rhyticeros subruficollis
- Rhyticeros undulatus
- Rhytipterna
- Rhytipterna holerythra
- Rhytipterna immunda
- Rhytipterna simplex
- Ria Formosa
- Ria Formosa Portugal
- Ribbon-tailed Astrapia
- Ribbon-tailed Bird-of-paradise
- Ribbon-tailed Bird of paradise
- Ribbon-tailed Drongo
- Ribbon tail
- Riccordia ricordii
- Richard's Fruit-dove
- Richard's Fruit Dove
- Richard's Pipit
- Richmond Park
- Richmond Park (London)
- Richmond Shoreline
- Richmondena cardinalis
- Rickett's Parrotbill
- Ridgetop Swiftlet
- Ridgway's Hawk


