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Cassin's auklet uses a few offshore lands for breeding in Oregon. It forages in the marine environment and nests in a chamber under rocks or digs its own burrow, two to six feet long, in the soil. This species spends its day at sea and only comes to the burrow at night, perhaps to reduce discovery by predacious Western gulls. Although few Cassin's auklets nest in Oregon, nesting sites are found along the entire coast where offshore rocks provide appropriate habitat. During the non-breeding season this is the most abundant alcid seen at sea in Oregon. They are present offshore…

The Hammond's flycatcher spends much of its time in tall conifer canopies, where its subdued plumage and quiet, monotonous chant let it be easily overlooked. A diligent observer may be able to locate this aerial insectivore on a dead limb just beneath the live crowns of mature conifers from which it sallies into a canopy gap to capture insect prey on the wing. It is a common summer resident of montane coniferous forests through the state, on both sides of the Cascades. Hear the song of the Hammond's flycatcher Photo by Keith Williams, Flickr

This small, boldly-patterned duck can be found in Oregon throughout the year, either around rocky headlands on the coast or inland on mountain streams. No other breeding duck in Oregon feeds almost exclusively on benthic invertebrates, often swimming underwater and upstream against swift current in search of prey. Though males are striking in appearance, these and the drab brown females can be difficult to see when at rest on a mid-stream rock or dodging behind rocks as they evade observers. Broods have been observed or nests located on tributaries in the river basins of the west Cascades. They are found…

Small in size and displaying a showy, almost comical alternate plumage, the male ruddy duck is an unforgettable sight. Breeding males are unmistakable with their rich chestnut back, black crown, white cheek, sky-blue bill, and proportionately long stiff tail. Female plumage is drab in comparison, being dusky dark brown with a dark facial strip across the mostly white cheek, quite similar to the male's basic plumage. Known for their peculiar courtship display in which the male draws his head down and slaps his bill against his breast repeatedly in increasing tempo, creating a bubbling in the water and a hollow…

Formerly known in American literature as the Sparrow hawk, this is the smallest (dove-sized) and most familiar and abundant member of the family Falconidae in North America and one of the easiest raptors to observe. It has two considerably different plumages: adult male and female and juvenile males differ somewhat from adult males until post-juvenile mold in fall. Adult males have rufous backs and tails with blue-grey upper wing coverts. The tail has a wide black subterminal band. Juvenile males are similar to adult males but have heavily streaked breasts. Females are slightly larger than males and have reddish-brown backs…

The Olive-sided flycatcher is one of the most recognizable breeding birds of Oregon's conifer forests with its resounding, three-syllable whistle song quick, three beers. It is a relatively large, somewhat bulky, large headed, short-necked flycatcher that perches erect and motionless at the top of a tall tree or snag except when singing or darting out to capture flying insects. The overall olive-gray plumage is generally nondescript except for a whitish stripe down the breast and belly which gives the impression of an unbuttoned vest, and white patches between the wings and lower back. This flycatcher breeds in low densities throughout…

The foothills of interior southwestern Oregon come alive in late April with the bold song of this bright yellow warbler. Here it seems every brushy area or mixed conifer/hardwood forest with dense undergrowth has at least one male singing just beyond the reach of binoculars. Although it can be found in many other places in the state and in a variety of habitats, nowhere else is it as common. Nashville's are one of the few warblers in the West to nest on the ground. They occupy diverse shrub communities, often including or adjacent to a relatively short or open tree…

Features: These crab can be identified by their black-tipped claws, wide fan-shaped carapace (body cover) and deep, brick-red color.‌ Habitat: As the name implies, red rock crab prefer the harder substrate habitats such as rocks, pilings, and other structure. Red rock crab prefer higher salinities than Dungeness crab and therefore are usually found in larger estuaries, close to the ocean. They are most common in Coos, Yaquina, and Tillamook bays where there are plentiful rocky substrates. Red rock crabs are native to Oregon.‌ Techniques: Usually caught in combination with Dungeness crab, using the same techniques.‌

A large and colorful member of the sparrow family, the Green-tailed towhee is perhaps more recognizable by its eye-catching chestnut crown than by its less intense green-gray back and olive tail. As a ground forager, it spends most of its time on the ground or in thick cover, scratching about industriously in the leaf litter, and it may go unnoticed. But its catlike mewing call, which it often gives from a brushy perch, is one of the quintessential sounds of the shrublands of the east slope of the Cascades and the Great Basin. It is locally fairly common east of…

With four wing-beats each second pushing them to 62 miles per hour, brant are the fastest and strongest geese in flight and among the swiftest of all large birds. Black brant comprise the vast majority of brant occurring in Oregon. These small geese have smoky black backs and bellies, and dissected white collars and white around the tails provide striking contrast. The black brant can live up to 20 years and are resilient enough to ride out storms on the open ocean. In Oregon, wintering numbers along the coast have seen a 50 percent reduction from previous years due to…

This large bird of prey has dark brown feathers above, white feathers below with a white head and prominent dark eye stripe as well as a visible dark spot at the wrist of the wing when flying. Juveniles have buffy-tipped dark feathers above. In flight, the wings have a noticeable angle or "crook." This highly migratory fish-eating species is frequently found nesting along larger rivers, lakes, and reservoirs. A large bulky nest at the very top of a live, broken top, or dead tree and more recently on utility poles, channel markers, pilings, and cell phone towers near fishable waters…

The Tufted Puffin is extremely charismatic and the most recognized seabird in Oregon. It is easily identified in the breeding season by the colorful laterally compressed bill, a distinct white face with long cream-colored facial plumes, black body, and reddish-orange feet. In winter it moves offshore and loses most of its colorful plumage and bill plates.‌ Tufted Puffins are burrow-nesters and feed at sea. Along the Oregon coast, they primarily nest on soil-covered islands free of mammalian predators. They also occasionally nest on headlands such as Cape Mears, Cape Lookout, Cape Foulweather, and Yaquina Head. ‌ Tufted Puffin populations have…

The gregarious Tricolored blackbird is one of North America's most intensely colonial breeders, forming dense, non-territorial, noisy colonies. A highly synchronized nesting system exploits secure nesting locations and rich food supplies that change from year to year. In Oregon, breeding colonies are scattered and intermittent at specific locations, though sites used during consecutive years may be in the same general area. The Tricolored blackbird breeds most consistently in Klamath and Jackson Counties. Small colonies and summering residents have been found in the Willamette Valley; during fall and winter they are rare. Most retreat south to California in winter, while some…

One of the most impressive sights in the unforested regions east of the Cascades is a Prairie falcon strafing a Belding's ground squirrel colony repeatedly at full speed in hopes of catching one emerging from its burrow at just the wrong moment. Prairie falcons are most common in rimrock country where they nest, but may travel great distances in search of prey. Prairie falcons are large, sandy brown above and off-white with variable amounts of streaking below. The face has a vertical stripe below the eye, as do many falcons. In flight, the long, pointed wings and long tail identify…

These chunky medium-small shorebirds are quite colorful in oranges and browns during most of their time in Oregon, where they are found mainly along the coast and locally in muddy areas inland. Their feeding motion has been likened to a sewing machine as flocks move slowly through shallow water and wet mud, probing with long straight bills. They are occasionally seen in marginal areas such as flooded pastures, but less likely than Long-billed to use such upland locations. They are a common to locally abundant coastal migrant, less common and more local in western interior valleys, and rare bur regular…

This medium-sized owl is easily recognized by its conspicuous "ear" tufts, yellow eyes set in a round facial disk, size, and mottled plumage of black, brown, gray, buff, and white. Legs and toes are densely feathered. Females are larger and darker in coloration than males. It is strictly nocturnal and secretive during nesting. The Long-eared owl is a fairly common breeder in open country east of the Cascades in wooded riparian areas and junipers. It is a common breeder on Boardman Bombing Range, Morrow County and widespread in Malheur County. It is a rare breeder in the foothills of the…

The canyon mouse is a moderate to small-sized mouse-like rodent with a long tail, nearly naked ears and a long, lax, and silky dusty gray pelage. In Oregon, most locations where the canyon mouse has been found are in Harney and Malheur counties, but the distribution includes a group of localities in Crook, Jefferson, Wasco, and Wheeler counties and another group in Lake County. There are also records of the species in extreme southeastern Baker County. Rock, primarily rimrock and talus slopes, seems to be the key component of habitats occupied by the canyon mouse. They are usually active nocturnally…