Custom Species Lists
- Podiceps grisegena - (Red-necked Grebe)
- Phalaropus lobatus - (Red-necked Phalarope)
- Cornus sericea - (Red-osier Dogwood)
- Buteo jamaicensis - (Red-tailed Hawk)
- Gavia stellata - (Red-throated Loon)
- Agelaius phoeniceus - (Red-winged Blackbird)
- Sebastes babcocki - (Redbanded Rockfish)
- Aythya americana - (Redhead)
- Richardsonius balteatus - (Redside Shiner)
- Sebastes proriger - (Redstripe Rockfish)
- Phalaris arundinacea - (Reed Canarygrass)
- Glyceria maxima - (Reed Meadowgrass)
- Glyptocephalus zachirus - (Rex Sole)
- Cerorhinca monocerata - (Rhinoceros Auklet)
- Triglops pingelii - (Ribbed Sculpin)
- Phytichthys chirus - (Ribbon Prickleback)
- Histriophoca fasciata - (Ribbon Seal)
- Liparis cyclopus - (Ribbon Snailfish)
- Larus delawarensis - (Ring-billed Gull)
- Aythya collaris - (Ring-necked Duck)
- Phasianus colchicus - (Ring-necked Pheasant)
- Liparis rutteri - (Ringtail Snailfish)
- Grampus griseus - (Risso's Dolphin)
- Lampetra ayresii - (River Lamprey)
- Ambloplites rupestris - (Rock Bass)
- Hexagrammos lagocephalus - (Rock Greenling)
- Columba livia - (Rock Pigeon)
- Xiphister mucosus - (Rock Prickleback)
- Calidris ptilocnemis - (Rock Sandpiper)
- Lepidopsetta bilineata - (Rock Sole)
- Salpinctes obsoletus - (Rock Wren)
- Eruca vesicaria ssp. sativa - (Rocket-salad)
- Bothragonus swanii - (Rockhead )
- Apodichthys fucorum - (Rockweed Gunnel)
- Brotherella roellii - (Roell's Brotherella Moss)
- Festuca roemeri - (Roemer's Fescue)
- Sorex rohweri - (Rohwer's Shrew)
- Rattus rattus - (Roof Rat)
- Semele rubropicta - (Rose Semele)
- Crossaster papposus - (Rose Star)
- Sebastes helvomaculatus - (Rosethorn Rockfish)
- Chen rossii - (Ross's Goose)
- Orthocarpus bracteosus - (Rosy Owl's-clover)
- Sebastes rosaceus - (Rosy Rockfish)
- Tritonia diomedea - (Rosy Tritonia)
- Ascelichthys rhodorus - (Rosylip Sculpin)
- Equisetum hyemale - (Rough Horsetail)
- Buteo lagopus - (Rough-legged Hawk)
- Taricha granulosa - (Rough-skinned Newt)
- Chitonotus pugetensis - (Roughback Sculpin)
- Sebastes aleutianus - (Rougheye Rockfish)
- Triglops macellus - (Roughspine Sculpin)
- Oxyura jamaicensis - (Ruddy Duck)
- Arenaria interpres - (Ruddy Turnstone)
- Philomachus pugnax - (Ruff)
- Bonasa umbellus - (Ruffed Grouse)
- Selasphorus rufus - (Rufous Hummingbird)
- Chondrilla juncea - (Rush Skeletonweed)
- Eriophorum chamissonis - (Russet Cotton-grass)
- Acroptilon repens - (Russian Knapweed)
- Salsola kali - (Russian-thistle)
- Sabellid spp. - (Sabellid Tube Worm)
- Xema sabini - (Sabine's Gull)
- Anoplopoma fimbria - (Sablefish)
- Pholis ornata - (Saddleback Gunnel)
- Pholis ornata - (Saddleback Gunnel)
- Oligocottus rimensis - (Saddleback Sculpin)
- Amphispiza belli - (Sage Sparrow)
- Oreoscoptes montanus - (Sage Thrasher)
- Nautichthys oculofasciatus - (Sailfin Sculpin)
- Gaultheria shallon - (Salal)
- Erigeron salishii - (Salish's Daisy)
- Lamna ditropis - (Salmon Shark)
- Rubus spectabilis - (Salmonberry)
- Tamarix ramosissima - (Salt-cedar)
- Schoenoplectus maritimus - (Saltmarsh Bulrush)
- Spartina patens - (Saltmeadow Cordgrass)
- Spartina alterniflora - (Saltwater Cordgrass)
- Orconectes sanbornii - (Sanborn's Crayfish)
- Dendraster excentricus - (Sand Dollar)
- Crassula connata - (Sand Pygmyweed)
- Psettichthys melanostictus - (Sand Sole)
- Luidia foliolata - (Sand Star)
- Copablepharon fuscum - (Sand-verbena Moth)
- Citharichthys spp. - (Sanddab)
- Calidris alba - (Sanderling)
- Grus canadensis - (Sandhill Crane)
- Bathyraja interrupta - (Sandpaper Skate)
- Bathyraja kincaidii - (Sandpaper skate)
- Sargassum muticum - (Sargassum Algae)
- Passerculus sandwichensis - (Savannah Sparrow)
- Sayornis saya - (Say's Phoebe)
- Artedius harringtoni - (Scalyhead Sculpin)
- Tripleurospermum perforata - (Scentless False Mayweed)
- Cytisus scoparius - (Scotch Broom)
- Onopordum acanthium - (Scotch Cotton-thistle)
- Phyllospadix scouleri - (Scouler's Surf-grass)
- Parastichopus californicus - (Sea Cucumber)
- Pleurobrachia bachei - (Sea Gooseberry)
- Molgula manhattensis - (Sea Grape)