The Pacific tree frog (Pseudacris regilla), also known as the Pacific chorus frog, has a range from the West Coast of the United States (from Northern California, Oregon, and Washington) to British Columbia in Canada and extreme southern Alaska. They live from sea level to more than 10,000 feet in many types of habitats, reproducing in aquatic settings. They occur ...more ↓
The Cascades frog (Rana cascadae) is a species of frog in the Ranidae family found in the western United States and possibly Canada, mainly in the Cascade Range and Olympic Mountains.
The American bullfrog (Lithobates catesbeianus or Rana catesbeiana), often simply known as the bullfrog in Canada and the United States, is an amphibious frog, a member of the family Ranidae, or “true frogs”. This frog has an olive green back and sides blotched with brownish markings and a whitish belly spotted with yellow or grey. The upper lip is often bright ...more ↓
The northern alligator lizard (Elgaria coerulea) is a medium-sized lizard that occurs on the North American west coast.
Sceloporus occidentalis occidentalis is a subspecies of the western fence lizard. The common name for this taxon is the northwestern fence lizard. This lizard occurs in the state of Washington in the United States.
The western terrestrial garter snake (Thamnophis elegans) is a western North American species of colubrid snake. At least five subspecies are currently recognized.
Diadophis punctatus, commonly known as the ring-necked snake or ringneck snake, is a harmless species of colubrid snake found throughout much of the United States, central Mexico, and southeastern Canada. Ring-necked snakes are secretive, nocturnal snakes, so are rarely seen during the day time. They are best known for their unique defense posture of curling up ...more ↓
The western yellow-bellied racer (Coluber constrictor mormon), also known as the western yellowbelly racer, or western racer, is a snake species endemic to Western United States, including California, Oregon, Nevada, New Mexico, Utah, and Colorado. It is a subspecies of the racer. It is nonvenomous, and is recognized by its long and very slender shape. It is ...more ↓
Pituophis catenifer is a species of nonvenomous colubrid snake endemic to North America. Six subspecies are currently recognized, including the nominotypical subspecies, Pituophis catenifer catenifer, described here. This snake is often mistaken for the prairie rattlesnake but can be easily distinguished from a rattlesnake by the lack of black and white banding on its ...more ↓
The California kingsnake (Lampropeltis getula californiae) is a nonvenomous colubrid snake endemic to the western United States and northern Mexico. It is a relatively small subspecies of the common kingsnake and is found in a variety of habitats. Due to ease of care and a wide range of color variations, the California kingsnake is one of the most popular snakes in ...more ↓
Crotalus oreganus is a venomous pit viper species found in North America in the western United States, parts of British Columbia, and northwestern Mexico. Seven subspecies are currently recognized, including the nominate subspecies described here.
The western pond turtle (Actinemys marmorata or Emys marmorata), or Pacific pond turtle is a small to medium-sized turtle growing to approximately 20 cm (8 in) in carapace length. It is limited to the west coast of the United States of America and Mexico, ranging from western Washington state to northern Baja California. In May 2002, the Canadian Species at Risk Act ...more ↓
The red-eared slider (Trachemys scripta elegans), also known as the red-eared terrapin, is a semiaquatic turtle belonging to the family Emydidae. It is a subspecies of the pond slider. It is the most popular pet turtle in the United States and is also popular as a pet in the rest of the world. It has, therefore, become the most commonly traded turtle in the world. It is ...more ↓
The Virginia opossum (Didelphis virginiana), commonly known as the North American opossum, is a marsupial found in North America. It is the only marsupial found north of Mexico. In the United States, it is typically referred to simply as a possum. It is a solitary and nocturnal animal about the size of a domestic cat. It is a successful opportunist. It is familiar ...more ↓
The mountain cottontail or Nuttall's cottontail (Sylvilagus nuttallii) is a species of mammal in the family Leporidae. It is found in Canada and the United States.
The snowshoe hare (Lepus americanus), also called the varying hare, or snowshoe rabbit, is a species of hare found in North America. It has the name "snowshoe" because of the large size of its hind feet. The animal's feet prevent it from sinking into the snow when it hops and walks. Its feet also have fur on the soles to protect it from freezing temperatures.
The black-tailed jackrabbit (Lepus californicus), also known as the American desert hare, is a common hare of the western United States and Mexico, where it is found at elevations from sea level up to 10,000 ft (3,000 m). Reaching a length around 2 ft (61 cm), and a weight from 3 to 6 lb (1.4 to 2.7 kg), the black-tailed jackrabbit is the third-largest North American ...more ↓
The American pika (Ochotona princeps), a diurnal species of pika, is found in the mountains of western North America, usually in boulder fields at or above the tree line. They are herbivorous, smaller relatives of rabbits and hares.
The western gray squirrel (Sciurus griseus) is an arboreal rodent found along the western coast of the United States and Mexico.
The Douglas squirrel (Tamiasciurus douglasii) is a pine squirrel found in the Pacific coastal states of the United States as well as the southwestern coast of British Columbia in Canada. It is sometimes known as the chickaree or pine squirrel, although these names are also used for the American red squirrel. Variant spellings of the common name are Douglas' ...more ↓
The yellow-pine chipmunk (Tamias amoenus) is a species of order Rodentia in the family Sciuridae. It is found in western North America: parts of Canada and the United States.
The least chipmunk (Tamias minimus) is the smallest species of chipmunk, and the most widespread in North America.
The Siskiyou chipmunk (Neotamias siskiyou) is a species of rodent in the family Sciuridae. It is endemic to northern California and central Oregon in the United States.
Townsend's chipmunk (Neotamias townsendii) is a species of rodent in the squirrel family Sciuridae. It lives in the forests of the Pacific Northwest of North America, from British Columbia through western Washington and Oregon. A large chipmunk, adults can be 36 cm (14 in) from nose to tail. In much of its range, it is the only chipmunk; it can be identified by its tail which is ...more ↓
The California ground squirrel (Otospermophilus beecheyi), is a common and easily observed ground squirrel of the western United States and the Baja California Peninsula; it is common in Oregon and California and its range has relatively recently extended into Washington and northwestern Nevada. Formerly placed in Spermophilus, as Spermophilus beecheyi, it was ...more ↓
The golden-mantled ground squirrel (Callospermophilus lateralis) is a ground squirrel native to western North America. It is distributed in British Columbia and Alberta through the western United States to California, Arizona, and New Mexico.
Belding's ground squirrel (Urocitellus beldingi), also called pot gut, sage rat or picket-pin, is a squirrel that lives on mountains in the western United States. In California, it often is found at 6,500 to 11,800 feet (2,000–3,600 m) in meadows between Lake Tahoe and Kings Canyon. This species is not of conservation concern, and its range includes some ...more ↓
The yellow-bellied marmot (Marmota flaviventris), also known as the rock chuck, is a large, stout-bodied ground squirrel in the marmot genus. It is one of fourteen species of marmots, and is native to mountainous regions of southwestern Canada and western United States, including the Rocky Mountains, Sierra Nevada, and Mount Rainier in the state of Washington, typically ...more ↓
The North American beaver (Castor canadensis) is one of two extant beaver species. It is native to North America and introduced to Patagonia in South America and some European countries (e.g. Finland). In the United States and Canada, the species is often referred to simply as "beaver", though this causes some confusion because another distantly related rodent, Aplodontia ...more ↓
The Mazama pocket gopher (Thomomys mazama) is a smooth-toothed pocket gopher restricted to the Pacific Northwest. The species ranges from coastal Washington, through Oregon, and into north-central California.
Ord's kangaroo rat (Dipodomys ordii) is a kangaroo rat native to western North America, specifically the Great Plains and the Great Basin, with its range extending from extreme southern Canada to central Mexico.
The coypu (from Spanish coipú, from Mapudungun koypu; Myocastor coypus), also known as the nutria, is a large, herbivorous, semiaquatic rodent. It has been classified for a long time as the only member of the family Myocastoridae. However, studies based on the comparison of DNA and protein sequences showed that Myocastor is nested within Echimyidae, ...more ↓
The Brown rat (Rattus norvegicus), also referred to as the common rat, street rat, sewer rat, Hanover rat, Norway rat, Norwegian rat, or wharf rat is one of the best known and most common rats.
The muskrat (Ondatra zibethicus), the only species in genus Ondatra and tribe Ondatrini, is a medium-sized semiaquatic rodent native to North America and is an introduced species in parts of Europe, Asia, and South America. The muskrat is found in wetlands over a wide range of climates and habitats. It has important effects on the ecology of wetlands, and is ...more ↓
The California vole (Microtus californicus) is a type of vole which lives throughout much of California and part of southwestern Oregon. It is also known as the California meadow mouse. It averages 172 mm (6.8 in) in length although this length varies greatly between subspecies.
Peromyscus maniculatus is a rodent native to North America. It is most commonly called the deer mouse, although that name is common to most species of Peromyscus, and thus is often called the North American deermouse and is fairly widespread across the continent, with the major exception being the southeast United States and the far north.
The bushy-tailed woodrat, or packrat (Neotoma cinerea) is a species of rodent in the family Cricetidae found in Canada and the United States. Its natural habitats are boreal forests, temperate forests, dry savanna, temperate shrubland, and temperate grassland.
Two forms of black-tailed deer or blacktail deer that occupy coastal woodlands in the Pacific Northwest are subspecies of the mule deer (Odocoileus hemionus). They have sometimes been treated as a species, but virtually all recent authorities maintain they are subspecies. The Columbian black-tailed deer (Odocoileus hemionus columbianus) is found in western ...more ↓
The elk (Cervus canadensis), also known as the wapiti, is one of the largest species within the deer family, Cervidae, and one of the largest terrestrial mammals in North America, as well as Central and East Asia. It is often confused with the larger Alces alces, which is called moose in North America, but called elk in British English, and related names in other ...more ↓
The hoary bat (Lasiurus cinereus) is a species of bat in the vesper bat family, Vespertilionidae. It occurs throughout most of North America and much of South America, with disjunct populations in the Galápagos Islands and Hawaii.
The California myotis (Myotis californicus) is a species of vesper bat. It is found in British Columbia in Canada, Guatemala, Mexico, and in the western United States, including California.
The American black bear (Ursus americanus) is a medium-sized bear native to North America.
The raccoon (/rəˈkuːn/ or US: /ræˈkuːn/ ( listen), Procyon lotor), sometimes spelled racoon, also known as the common raccoon, North American raccoon, northern raccoon,and colloquially as coon, is a medium-sized mammal native to North America. The raccoon is the largest of the procyonid family, having a body length of 40 to 70 cm (16 to 28 in) ...more ↓
The North American river otter (Lontra canadensis), also known as the northern river otter or the common otter, is a semiaquatic mammal endemic to the North American continent found in and along its waterways and coasts. An adult river otter can weigh between 5.0 and 14 kg (11.0 and 30.9 lb). The river otter is protected and insulated by a thick, water-repellent ...more ↓
The long-tailed weasel (Neogale frenata), also known as the bridled weasel or big stoat, is a species of mustelid distributed from southern Canada throughout all the United States and Mexico, southward through all of Central America and into northern South America. It is distinct from the short-tailed weasel (Mustela erminea), also known as a "stoat", a ...more ↓
The striped skunk (Mephitis mephitis) is a skunk of the genus Mephitis that is native to southern Canada, the United States and northern Mexico. It is currently listed as least concern by the IUCN on account of its wide range and ability to adapt to human-modified environments.
The bobcat (Lynx rufus) is a North American cat that appeared during the Irvingtonian stage of around 1.8 million years ago (AEO). Containing 12 recognized subspecies, it ranges from southern Canada to central Mexico, including most of the contiguous United States. The bobcat is an adaptable predator that inhabits wooded areas, as well as semidesert, urban edge, forest edge, and ...more ↓
The coyote (Canis latrans); from Nahuatl pronunciation (help·info)) is a canine native to North America. It is smaller than its close relative, the gray wolf, and slightly smaller than the closely related eastern wolf and red wolf. It fills much of the same ecological niche as the golden jackal does in Eurasia, though it is larger and more predatory, and is sometimes called the ...more ↓
The gray fox (Urocyon cinereoargenteus), or grey fox, is a carnivorous mammal of the family Canidae, widespread throughout northern and central America. This species and its only congener, the diminutive Channel Island fox (Urocyon littoralis), are the only living members of the genus Urocyon, which is considered to be the most basal of the living canids. ...more ↓
The rainbow trout (Oncorhynchus mykiss) is a trout and species of salmonid native to cold-water tributaries of the Pacific Ocean in Asia and North America. The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coastal rainbow trout (O. m. irideus) or Columbia River redband trout (O. m. gairdneri) that usually ...more ↓
The blue chub (Gila coerulea) is a cyprinid fish found in the Klamath River and Lost River drainages of far northern California and southern Oregon.
The common carp or European carp (Cyprinus carpio) is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia. The native wild populations are considered vulnerable to extinction by the International Union for Conservation of Nature (IUCN), but the species has also been domesticated and introduced into environments worldwide, and is ...more ↓
The Pacific lamprey (Entosphenus tridentatus or Lampetra tridentata) is an anadromous parasitic lamprey from the Pacific Coast of North America and Asia. It is a member of the Petromyzontidae family. The Pacific lamprey is also known as the three-tooth lamprey and tridentate lamprey.
The Chinese mystery snail, black snail, or trapdoor snail, scientific name Bellamya chinensis, synonym Cipangopaludina chinensis, is a large freshwater snail with gills and an operculum, an aquatic gastropod mollusk in the family Viviparidae. The Japanese variety of this species is black and usually a dark green, moss-like alga covers the ...more ↓
Ariolimax columbianus or the Pacific banana slug is a species of Ariolimax Banana slug found on the Pacific Coast of North America.
Monadenia fidelis, common name the Pacific sideband, is a medium-sized species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Monadeniidae.
Cornu aspersum, known by the common name garden snail, is a species of land snail. As such it is a terrestrial pulmonate gastropod mollusc in the family Helicidae, which includes some of the most commonly familiar land snails. Of all terrestrial molluscs, this species may well be the most widely known. In English texts it was classified under the name Helix ...more ↓
Limax maximus (literally, "biggest slug"), known by the common names great grey slug and leopard slug, is a species of slug in the family Limacidae, the keeled slugs. It is among the largest keeled slugs, Limax cinereoniger being the largest.
Latrodectus hesperus, the western black widow spider or western widow, is a venomous spider species found in western regions of North America. The female's body is 14–16 mm (1/2 in) in length and is black, often with an hourglass-shaped red mark on the lower abdomen. This "hourglass" mark can be yellow, and on rare occasions, white. The male of the species is ...more ↓
Sphinx perelegans (elegant sphinx) is a species of hawkmoth. It is native to western North America from British Columbia to Baja California and to New Mexico.
The Pandora moth or Pandora pinemoth, Coloradia pandora, is an insect belonging to the Coloradia genus of moths. It is native to the western United States. The larvae of the Pandora moth feed on the foliage of several species of pine trees, including the lodgepole, Jeffrey, and ponderosa pines. The larvae populations sometimes reach high enough levels to cause ...more ↓
The sheep moth, or common sheep moth (Hemileuca eglanterina), is a member of the family Saturniidae of silk moths and is native to western North America. In California, its range is west of the Sierran crest and the mountains of Southern California, ranging near to the coast. The moth is dayflying and appears in summer. It feeds on plants of three genera: ...more ↓
Parnassius clodius is a high-altitude butterfly which is found in the United States and Canada. It is a member of the snow Apollo genus (Parnassius) of the swallowtail family (Papilionidae).
Papilio zelicaon, the anise swallowtail, is a common swallowtail butterfly of western North America. Both the upper and lower sides of its wings are black, but the upper wing has a broad yellow stripe across it, which gives the butterfly an overall yellow appearance. There are striking blue spots on the rear edge of the rear wing, and the characteristic tails of the ...more ↓
Papilio eurymedon, the pale swallowtail or pallid swallowtail, is a relatively common swallowtail butterfly found throughout much of the western North America. It is found on the Pacific coast from northern Baja California to southernmost British Columbia, and inland to New Mexico and the Black Hills of South Dakota. It is present from the coast to western Montana, ...more ↓
Papilio rutulus, the western tiger swallowtail, is a common swallowtail butterfly of western North America, frequently seen in urban parks and gardens, as well as in rural woodlands and riparian areas. It is a member of the Papilio genus, of which Papilio appalachiensis and Papilio xuthus are also members. It is a large, brightly colored and active ...more ↓
Amblyscirtes vialis (the common roadside skipper) is a butterfly of the Hesperiidae family. It is found from British Columbia east across southern Canada to Maine and Nova Scotia, south to central California, northern New Mexico, Texas, the Gulf states and northern Florida.
Ochlodes sylvanoides, the woodland skipper, is a butterfly of the family Hesperiidae. It is found in North America from British Columbia south to southern California, east to Montana, Colorado and Arizona.
The American painted lady or American lady (Vanessa virginiensis) is a butterfly found throughout North America.
Hesperia juba, the Juba skipper, Yuba skipper, or jagged-border skipper, is a butterfly of the family Hesperiidae. It is found in North America from British Columbia, south to southern California, east to Montana, Wyoming, Colorado, and north-western New Mexico.
Erynnis propertius, the Propertius duskywing, is a butterfly of the family Hesperiidae. It is found in along the west coast of North America from southern British Columbia south along the Pacific Slope to Baja California Norte.
Adelpha californica, the California sister, is a species of butterfly in the family Nymphalidae. They are common in California, but can also be found in western Nevada and Oregon, as well as in northern Baja California. The upper surfaces of their wings are dark brown to black with wide cream white bands dissecting both wings and two orange patches near the tips of the ...more ↓
Lorquin's admiral (Limenitis lorquini) is a butterfly in the Nymphalinae subfamily. The butterfly is named after Pierre Joseph Michel Lorquin, a French naturalist who came to California from France during the Gold Rush, and made important discoveries on the natural history of the terrain.
Edith's checkerspot (Euphydryas editha) is a species of butterfly in the Nymphalidae family. It is a resident species of western North America and among the subspecies, entomologists have long been intrigued by their many phenotypic variations in coloration, wing length, and overall body size. Most populations are monophagous and rely on plants including Plantago erecta ...more ↓
Phyciodes mylitta, the Mylitta crescent or Mylitta crescentspot, is a butterfly of the Nymphalidae family. It is found in western North America.
Lestes congener is a species of damselfly in the family Lestidae, the spreadwings. It is known by the common name spotted spreadwing.
Chlosyne hoffmanni, or Hoffmann's checkerspot, is a butterfly of the Nymphalidae family that is found in western North America. They range from the Sierra Nevada and Cascade Mountains in the U.S. to Manning Park in British Columbia.
The West Coast lady (Vanessa annabella) is one of three North American species of brush-footed butterflies known colloquially as the "painted ladies". V. annabella occurs throughout much of the western US and southwestern Canada. The other two species are the cosmopolitan Vanessa cardui (painted lady) and the eastern Vanessa virginiensis (American painted ...more ↓
Vanessa atalanta, the red admiral or previously, the red admirable,is a well-characterized, medium-sized butterfly with black wings, orange bands, and white spots. It has a wingspan of about 2 inches (5 cm). It was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. The red admiral is widely distributed across temperate regions of ...more ↓
Vanessa cardui is a well-known colorful butterfly, known as the painted lady, or in North America as the cosmopolitan. This butterfly has a strange habit of flying in a sort of screw shape.
The American painted lady or American lady (Vanessa virginiensis) is a butterfly found throughout North America.
Boloria epithore, the Pacific fritillary, is a butterfly of the Nymphalidae family. It is found in western North America from California to British Columbia and Alberta.
Nymphalis antiopa, known as the mourning cloak in North America and the Camberwell beauty in Britain, is a large butterfly native to Eurasia and North America.
The California tortoiseshell (Nymphalis californica) is a butterfly of the family Nymphalidae.
The hoary comma (Polygonia gracilis) is a species of butterfly, common in boreal North America from Alaska, across southern Canada to New England and the Maritime Provinces and south to New Mexico from the Rocky Mountains to the Pacific Ocean. The wings have a distinctive ragged edge.
Polygonia satyrus, the satyr comma, is a North American butterfly of the nymphalid family. It is primarily found in western Canada, where it is locally common. It bears a resemblance to Polygonia comma, the eastern comma, with which it is frequently confused.
Oeneis nevadensis is a species of butterfly in the family Nymphalidae. It is commonly known as the great Arctic, Nevada Arctic, great grayling, Felder's Arctic, or Pacific Arctic. It is native to northwestern North America.
Cercyonis sthenele, the Great Basin wood-nymph, is a North American butterfly in the family Nymphalidae.
The great spangled fritillary (Speyeria cybele) is a North American butterfly of the Nymphalidae family.
Speyeria hydaspe, the Hydaspe fritillary, is a species of orange-brown butterfly found in the western portions of the United States and Canada. A small fritillary, it usually has cream-colored underwing spots, but the Vancouver Island subspecies has silver spots. It is similar to S. zerene and S. atlantis, but may be distinguished by the smooth and even ...more ↓
Boloria epithore, the Pacific fritillary, is a butterfly of the Nymphalidae family. It is found in western North America from California to British Columbia and Alberta.
The monarch butterfly or simply monarch (Danaus plexippus) is a milkweed butterfly (subfamily Danainae) in the family Nymphalidae. Other common names depending on region include milkweed, common tiger, wanderer, and black veined brown. It may be the most familiar North American butterfly, and is considered an iconic pollinator species. Its ...more ↓
Habrodais grunus, the golden hairstreak, is a butterfly in the Lycaenidae family. It is found in North America in southern Arizona, Oregon, California and Mexico. The habitat consists of oak woodland, canyons and mountain ridges.