rabia : rabies
rabilargo : azure-winged magpie : Cyanopica cyana
rabión : rapids.
rabo : tail
ráfaga : gust of wind
raitán (Ast.) : robin
raíz : root
rama : branch
ramaje : branches
rambla : watercourse; torrent; stream; dry river
ramón : branches either cut from trees by shepherds or resulting from pruning and used to feed livestock
rana: frog
raña : scrub plain with dehesa , as in La Raña of Cabañeros
rapiegu : (Ast) : fox :
raposo (reg) : fox
rasa : flat coatal area separated from the sea by cliffs. Common along the Cantabrian coast.
rascón europeo : water rail : Rallus aquaticus
rastro : scent; track (animal) :
rastrojo : stubble.
rata almizclera: muskrat: Ondatra zibethica
rata de agua: southern water vole: Arvicola sapidus
rata negra : black rat : Rattus rattus
rata parda: brown rat : Rattus norvegicus
rata topera : water vole : Arvicola terrestres
ratón casero: house mouse: Mus domesticus
ratón de campo : wood mouse : Apodemus sylvaticus
ratón espigeuro: harvest mouse : Micromys minutus
ratón leonado : yellow-necked mouse : Apodemus flavicollis
ratón moruno: Algerian mouse: Mus spretus
rayón : young boar. The name is in reference to the stripes (rayas) along its back. Also known as 'jabato'. :
rebaño : flock (sheep)
rebeco (or sarrio) : chamois : Rupicapra rupicapra
rebezo (Gal. + Ast.) : chamois
rec (Cat.) : irrigation ditch
redil : wooden sheep pen
refugi (Cat.) : mountain refuge
refugio : mountain refuge
regajo : rain-fed temporary stream or pool
regato : regajo
rego (Gal.) : stream
reguera : irration channal
reguero : reguera
relámpago: lightning
rellano : ledge
remanso : pool; backwater
remolino de agua : whirlpool
renacuajo : tadpole
repecho : short but steep slope
represa : dam; weir
reproducción : breeding
res : cow; head of livestock :
reserva de caza : hunting preserve . Reserva Nacional de Caza
restinga : sandbar
retinta : dark brown breed of cattle native of Extremadura
reyezuelo listado : firecrest : Regulus ignicapillus
reyezuelo sencillo : goldcrest : Regulus regulus
reyezuelo tinerfeño : Tenerife kinglet : Regulus teneriffae
ría : estuary; ria
riachuelo : small stream
riada : flash flood
rial (Cat.) : stream
ribazo : steep slope
ribera : riverbank; beach; shore
riega (Ast.) : stream
riego : irrigation
rio : river
riscal : craggy area.
risco : cliff; crag
riu (Cat.) : river
robezo (Ast) : chamois
robledal : oak wood
robledal : oakwood
rocío : dew
roedor : rodent :
roquedal : rocky place.
roquedo : rock; crag :
roquero rojo : rock thrush : Monticola saxatilis
roquero solitario : blue rock thrush : Monticola solitarius
rozo : forage obtained from weeding fields. :
rubia gallega : breed of Galician cow
ruiseñor bastardo : Cetti's warbler : Cettia cetti
ruiseñor común : rufous nightingale : Luscinia megarhynchos