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Features: Bullheads found in Oregon are distinguished from channel catfish by their square or rounded tails and lack of spotting. They seldom exceed two pounds and 18-inches long. Brown bullheads are a mottled yellowish-brown with a yellow belly and dark chin “whiskers” or barbels that are white near the base. They have a square tail. Habitat: Bullheads are found on the bottom in the shallows of mud-bottomed ponds, lakes, reservoirs and backwaters of rivers. The brown species is common throughout the state. Technique: Bullheads can be caught any month of the year, but fishing is best from the first warm

The Southern alligator lizard is found in a variety of habitats from grassland and chaparral to oak woodlands and edges of open coniferous forests, as well as riparian zones and moist canyon bottoms. It requires thickets, brush heaps, downed logs, or rock piles for cover. This carnivorous lizard feeds primarily on small invertebrates (slugs, spiders, centipedes, scorpions, beetles, grasshoppers, and crickets), but also is known to feed on bird eggs, nestlings, other lizards, and small mammals. Photo by Alan Harper, Creative Commons

These elegant shorebirds are found as often in dry or damp upland areas as they are on mudflats or beaches. The plain brown immature birds of autumn become spangled with black and gold as breeding approaches. It is an occasional to uncommon migrant in western Oregon (mainly coastal) and locally rare, irregular migrant in eastern Oregon, with most reports at Malheur National Wildlife Refuge, in the Klamath Basin (summer) and in Umatilla County. Hear the call of the American golden-plover Photo by Mark Peck, Flickr

This small, remarkably delicate long-legged wader can be found in migration across most of Oregon. It is speckled gray and white with some variation by season and is typically noticed mincing about in shallow pools and in the water adjacent to mudflats or on seasonally flooded fields, as well as in small isolated ponds. It is an uncommon to common migrant, most birds in fall. In the eastern one-third of Oregon, it usually outnumbers Greater yellowlegs in fall. Hear the call of the Lesser yellowlegs Photo by Dave Budeau, ODFW

Parasitic jaegers are strong, fast fliers with a flash of white on the bases of the underwing primaries. This is the most frequently seen jaeger from shore and it sometimes enters estuaries. They are an uncommon fall and rare spring transient offshore. Their flight is low and unlabored with falcon-like wing-beats that alternate with shearwater-like glides. These birds chase terns and small gulls for up to several minutes until they disgorge food. Hear the call of the Parasitic jaeger Photo by Aaron Maizlish, Flickr

This salt-loving bird is possibly the most abundant grebe in the world. These grebes nest in the large, tule-fringed marshes of southeastern Oregon. They also use almost any open water for feeding after the breeding season. The eared grebe has been reported breeding in nearly every eastern Oregon county, but principal breeding areas are in Klamath, Lake, and Harney counties. It is local elsewhere east of the Cascades. Hear the call of the eared grebe Photo by Dave Budeau, ODFW

Although they occur in a wide variety of habitat types, from deserts and chaparral to open forests across Oregon, Western rattlesnakes usually occur near rocks, cliffs, or downed logs. They overwinter in dens typically located on south-facing rocky hillsides exposed to sunshine. Western rattlesnakes feed mainly on small mammals, including mice, gophers, squirrels and rabbits, but will also take birds lizards, and amphibians. The Western rattlesnake is an Oregon Conservation Strategy Species in the Willamette Valley. Photo by Simon Wray, ODFW

Noted for its familiar call, chick-a-dee-dee-dee, the Black-capped chickadee is widely heralded as one of Oregon's friendliest and cheeriest residents. Even in the midst of winter, this bird "fairly overflows with good spirits." The Black-capped chickadee is resident at low to moderate elevations in western Oregon from the Willamette Valley and coastal counties to Douglas County and in most of eastern Oregon with the exception of the southeastern corner of the state. Hear the song of the Black-capped chickadee Photo by Dave Budeau, ODFW

Southern Oregon is the northwest limit of the breeding range of Blue-gray gnatcatcher, which, as its name implies, is an active, diminutive bluish-gray. This is an energetic bird, commonly jerking its tail sharply to one side, wings held below, occasionally spreading its tail. It breeds in numerous disjunct localities and may be expanding its range in Oregon. It is an uncommon to common summer resident in the interior Rogue Valley. Hear the song of the Blue-gray gnatcatcher Photo by John Sutton, Flickr

This colorful bird of coniferous forests and mixed woods is a common breeding species of eastern North America. It winters in the West Indies and Middle America and occasionally in California and the southern United States. It is a regular migrant in very small numbers in spring and irregular in summer and fall in the southwestern United States to California and Oregon and is occasionally found elsewhere in the West. The majority of Oregon records are from late April to late June, mostly from the east of the Cascades. Hear the song of the Northern parula Photo by Jeff Bryant

The black rat is slightly smaller than the Norway rat, but much larger than the house mouse, the only other members of the subfamily in Oregon. The black rat is similar to other members of the subfamily in that it possesses a scaly, scantily haired tail; membranous, nearly naked ears, and a soft pelage. It differs from the Norway rat in having a tail much longer than the length of its head and body and commonly having a darker-colored pelage. The pelage ranges from black to sandy brown dorsally and from lead colored to nearly white ventrally. The black rat

The Pacific white-sided dolphin is most abundant in the Southern California Bight in winter, but move further north, off Oregon and Washington in summer. These animals can be found from the tip of Baja to the Aleutians and the western Pacific from the Kuril Islands to Japan. They prefer deep, off-shore waters, so sightings are usually limited to recreational and commercial fishers. The Pacific white-sided dolphin is about seven or eight feet long. It has three colors: the chin, throat and belly are creamy white; the beak, flippers, back, and dorsal fin are a dark gray, and there are light

Features: Bullheads present in Oregon (brown, yellow and black) are distinguished from channel catfish by their square or rounded tails and lack of spotting. They seldom exceed two pounds and 18-inches long. Black bullheads have a square tail with a light vertical bar at its base and chin barbels that are all dark. Habitat: Bullheads are found on the bottom in the shallows of mud-bottomed ponds, lakes, reservoirs and backwaters of rivers. The black bullhead is primarily in reservoirs and streams tributary to the Snake River. Bullheads feed on almost any type of plant or animal material; insect larvae and

This is a bird of riparian thickets, farmlands, and towns. Since 1980, it has been observed almost annually in Harney County, usually in numbers less than five. A pair successfully fledged young near the Malheur National Wildlife Refuge headquarters in 1994. Most Harney County records occur from early April to late October. Away from Harney county individuals have also been seen in the various eastern and southeastern counties of Oregon. Hear the song of the Great-tailed grackle Photo by Kathy Munsel, ODFW

This snake is found in meadows and at the edges of clearings in forests. It prefers areas with dense vegetation but, when basking, can be found in open areas or on talus slopes. It occurs in wooded areas on the floor of the Willamette Valley and has been found in the Rogue Valley. This garter snake is commonly found in suburban areas and city parks. The Northwestern garter snake feeds mainly on slugs and earthworms, but also takes insects, small salamanders, frogs, fish, small mammals, and possibly nestlings of ground nesting birds. Photo by J. Maughn, Flickr

Much variability in coloration exists in the common garter snake but the best identifying characteristic is a stripe down the middle of the snake's back. While the common garter snake frequents wet meadows and forest edges, it occurs in a variety of habitats far from water, including open valleys and moist coniferous forest. Smaller snakes eat earthworms, but adults feed on a variety of vertebrate prey, including frogs, toads, salamanders, birds, fish, reptiles, and small mammals. Invertebrates, including slugs and leeches, are also eaten. Photo by Dave Budeau, ODFW