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Almost strictly nocturnal, the Western screech-owl hunts discreetly at night and roosts during the day in dense woodlands, its perfectly streaked plumage allows it to pass as tree bark. These habits make it difficult to see, and it is more common than many are aware. It is a small owl with yellow eyes and feathered ear tufts. It exhibits geographic variation in plumage color and pattern: both gray morphs and brown morphs occur in the Pacific Northwest. Sexes are alike. The Western screech-owl is a fairly common year-round resident in lower-elevation woodlands throughout Oregon. It is usually found below 3,000…

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…

A quiet, modest, unobtrusive little bird that must be sought to be seen in its shady retreats, this little-studied species can easily be overlooked. It is typically associated with oaks and mixed woodlands, where it hops along the foliage hunting for insects. In winter it forages with flocks of chickadees, kinglets, and nuthatches. This is Oregon's only resident vireo. Although it is sometimes referred to as non-migratory, some seasonal movement has been observed. Similar in appearance and behavior to the more common and widespread Ruby-crowned kinglet. Hear the song of the Hutton's vireo Photo by Greg Gilson

The long-legged myotis lives in forests and comes out early in the evening to hunt. It is a fast flier and will chase insects for a long distance. One baby is born in the summer, and the species hibernates in winter. In general, the long-legged myotis is a species associated with montane coniferous forests, but it also occurs in some desert and riparian habitats. The long-legged myotis is an Oregon Conservation Strategy Species in these ecoregions: Blue Mountains, Coast Range, East and West Cascades, Klamath Mountains, and Northern Basin and Range. Photo by ©Michael Durham

An Oregon native, sooty grouse occupy the coniferous forests of western Oregon, the eastern slopes of the Cascades, the Blue Mountains of northeastern Oregon, and the Klamath Basin and South Warner Mountains. Preferred habitat includes timber edges, open timbered slopes and mountain meadows, often adjacent to springs or other sources of water. They are often associated with berry producing areas such as chokecherry thickets. Hear the call of the sooty grouse Photo by ©Keith Kohl, ODFW

The piñon mouse is the largest member of the genus in Oregon. It is characterized by its enormous ears. Hair color varies geographically; overall, in central and eastern Oregon it is a pale-buff color with a wash of black on the dorsum, whereas mice from southwestern Oregon are bright ocherous on the shoulders and flanks and a dirty brown on the dorsum. In Oregon, the piñon mouse has been found in Josephine, Jackson, Klamath, Lake, Deschutes, Jefferson, Grant, Crook, and Harney counties. East of the Cascade Range it is almost always associated with western juniper in rimrocks. In southwestern Oregon…

The Western whiptail is found in eastern Oregon deserts and semi-arid shrublands. It is most common in flat, sandy areas and along dry washes. These lizards are primarily insectivorous. In a food habits study in southeastern Oregon, they ate caterpillars, crickets, grasshoppers, and beetles. They also eat spiders, scorpions, and other lizards. Photo by Keith Kohl, ODFW

The song of this bird is one of the characteristic sounds of spring evenings in much of the high desert country of eastern Oregon. This temperate migrant is a ground-nesting, ground-foraging bird of most of the grassland, agricultural land, and shrubs steppe habitats of Oregon. The streaked brownish plumage of the Vesper sparrow is similar to that of several small to medium-sized sparrows, except for white outer tail feathers, shown most conspicuously in flight. The Oregon vesper sparrow is an Oregon Conservation Strategy Species in the Klamath Mountains and Willamette Valley ecoregions. Hear the song of the Vesper sparrow Photo…

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

The Long-tailed weasel is the larger of the two weasels in Oregon, but smaller than the other member of the genus, the mink. Males are considerably larger than females. The head is flattened and somewhat triangular; the body and neck are elongate and almost cylindrical; the legs are short, and the tail is long. The summer pelage is brown dorsally; the venter is yellowish to orangish except for a white chin and sometimes one or more scattered brown spots. The tip of the tail is black. The pelage is molted twice annually. In the Cascade Range and eastward through the…

The kit fox is the smallest canid that occurs in Oregon. It has the typical canid conformation: the body is slim, the legs are long and thin, and the ears are large and erect. The tail is about 40 percent of the total length and is tipped with black, but has no dark mane on the dorsal surface. The feet and legs are whitish interiorly, light rusty-brown posteriorly. The dorsum is grizzled brownish-gray medially blending to grizzled gray then to light buff laterally and finally to white on the chest and venter. The head and posterior surface of the ears…

This is a portly, brightly colored shorebird, typically found in coastal salt marshes, mud flats, and sandy margins of freshwater ponds. Migrant juveniles rather than adults appear in Oregon. They have a flattish, dark rufous-colored crown with fine black streaking. The crown gives the appearance of a jaunty "cap" sitting forward on the head and abruptly ending at the rear. The breast is rich orange-buff shading into the white lower breast and belly. The well-defined creamy-white supercilium broadens behind the eye and is visible at a considerable distance. This is one of the most distinctive field marks on juveniles. They…

Spotted bats are rare in North America, living in dry climates and often roosting on high cliffs. They are white underneath with dark fur on their back and with large white spots. The spotted bat is found in eastern Oregon and is an Oregon Conservation Strategy Species in the Blue Mountains, Columbia Plateau, East Cascades, Klamath Mountains and Northern Basin and Range ecoregions. Photo by ©Michael Durham

One of Oregon's rarest breeders, this distinctive "shorebird" is known for its courtship display flight and loud curlew-like call. it often perches in pine trees or on fence posts adjacent to nesting areas. A small plover-like head and short, strait bill seem out of proportion to its body, which is reminiscent of a small curlew. The Upland sandpiper is a rare breeder in large montane meadows within forests of eastern Oregon. They are almost never observed away form the breeding grounds in Oregon. The Upland sandpiper is an Oregon Conservation Strategy Species in the Blue Mountains ecoregion. Hear the call…

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