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A large, long-legged wader distinguished from similar species in a flight by flashing rufous underwings and dark brown primaries. Its feet extend beyond tail tip in flight. Flocks generally consist of fewer than 50 birds on the coast. Juveniles migrate south several weeks later than most adults. After mid-November, a few stragglers are seen until late December. The Marbled godwit is a regular spring and fall migrant on the Oregon coast. Spring migration commences in early April and extends through early June on the coast. Its average arrival at the Malheur National Wildlife Reserve is April 27. Hear the call…

In alternate plumage this striking bird's lower neck, chest, and sides are bright chestnut. Three groups of yellow plumes adorn the sides of the head. Its head and throat are black. This grebe favors areas with much open water surrounded with emergent vegetation. The horned grebe is a rare breeder east of the Cascades. Malheur National Wildlife Reserve averages four to five pairs per summer. It is also rare along the coast in summer and is an uncommon spring and fall transient on lakes, reservoirs, and large rivers west of the Cascades and uncommon to common east of the Cascades…

Canis lupus is the largest canid, not only in Oregon, but in the rest of the world as well. The wolf has relatively long legs, a narrow and deep chest, elbows that turn inward and foot pads that turn outward. These, combined with the digitigrade feet possessed by all canids, make the wolf highly adapted for running. The pelage of gray wolves is long over the body and tail, but relatively short on the legs and face. The predominant color is gray, but the legs, flanks, and venter sometimes are yellowish or light brownish. These colors are overlain by long…

The American marten is weasel-like with a long body and pointy face. The legs are short; the toes, including the pads, are completely furred; and the nails are semiretractile. The tail is bushy and long. The pelage in winter is luxuriant, with a dense underfur and sparse covering of guard hairs. The color varies, but usually is a golden brown shading to dark brown on the feet and tail; the head is lighter. The throat and chest are splotched with orange or yellow. A small dark stripe extends upward from the medial corner of each eye, giving the appearance of…

Inconspicuous and master of stealth, the Least bittern inhabits densely vegetated deep-water marshes, making observations rare and difficult; its call is often the only way to detect this secretive species. The smallest of herons, its long neck and legs make it appear larger. The crown, back and tail of male birds is greenish black; purple-chestnut on female. Neck, flanks, and underparts are brown and white and the wings buff. It is a rare spring and summer resident in larger freshwater marshes of eastern Oregon and a very rare spring through fall visitor in the Rogue and Willamette valleys. At Upper…

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…

Canvasbacks are large; adults in good condition are as heavy as mallards and second in size only to the white-winged scoter among common Oregon ducks. Drakes have a reddish head and neck; black breast, lower back and tail coverts; nearly white back, flank, and belly, and dark gray tail. The hen is grayish brown with a darker brown head, neck, breast and tailcoverts. It is an occasional summer resident in northeast Oregon, nesting locally only at Ladd Marsh in Union County. It is an uncommon spring and fall migrant in northeastern Oregon and regular in winter and spring on the…

Cattle egrets are the smallest of Oregon's three egret species, with short, stout neck and legs, and white body with orange-buff plumes on the head and nape in spring and early summer. They are named for their association with livestock, consuming insects on their backs or stirred up by their hooves. In Oregon, the Cattle egret is a casual transient in spring in the Klamath Basin and rarely in the Malheur National Wildlife Refuge. The least widespread of the state's egrets during the breeding season; a rare breeder in the Great Basin and a few pairs occasionally nesting at Malheur…

The nasal meow of the Franklin's gull can be heard as it soars above wetlands and meadows, and colonies of this species are reported to be the loudest of all the gulls. In breeding plumage, the black hood contrasts sharply with the white breast and bright red bill. This species depends much more on insects and other invertebrates than do other gulls, and is therefore considered economically beneficial and favored by farmers. The Franklin's gull occurs in the southeast portion of the state in spring and summer, especially Harney Basin. It is rare west of the Cascades. It nests locally…

Known as "bluebill" to most hunters, this species is one of the most abundant and widespread of North American ducks. The lesser scaup is similar to the greater scaup in appearance and habits, but is smaller and lacks the white on the primaries. In the field, however, the black-and-white drakes and brown hens are very similar to greater scaups. The common vocalization is the purr call of the female; drakes are usually silent, but utter a low single-note whistle in courtship. In general, the lesser scaup is more apt to be found in interior or freshwater habitats while the greater…

The Wolverine is the largest terrestrial mustelid in Oregon that, to some degree, resembles a small bear. It is powerfully built with a broad, dog-like head; short round ears; small eyes; a slightly humped back; relatively short legs and a bushy, somewhat drooping tale. The pelage consists of a dense, wooly, crimped under fur overlain by course, stiff and somewhat shaggy guard hairs. Fur on the tail is about twice as long as on the body. The base color is blackish brown with a pale brown stripe extending along the sides from the head or shoulders to the base of…

The pronghorn, often called "antelope," is deer-sized with relatively long and thin legs and feet with just two digits on each foot, a relatively small tail, and unique horns consisting of deciduous keratin sheaths set on bony cores arising from the fontal bones. Among males, the laterally flattened sheaths are long, branched and recurved, but in those females that possess horns they are short and simple. The horns and hooves are black. The front feet are larger and carry most of the weight when the pronghorn runs. The pelage is course. The dorsum is a light buff and is separated…

The mountain goat is a stockily built bovid with black scimitar-shaped horns, large black hooves and prominent dew claws, and an entirely white, wooly pelage. Sometimes the pelage contains scattered brown hairs on the dorsum and rump. A long beard, pointed ears, and a squarish muzzle are also characteristic. Males are larger, and have longer, larger-diameter, and more evenly curved horns that females. Mountain goats are denizens of high altitudes, remote, and barren montane regions where they are capable of moving through exceedingly rugged and precipitous terrain with speed and agility. Nevertheless, mountain goats are known to fall occasionally, whereupon…

This pugnacious little wren, formerly known as the Long-billed marsh wren, inhabits cattail, bulrush, and other marsh plants. As the only Oregon species of wren that nests over water, it is easy to identify when seen, but sexes are difficult to differentiate in the absence of song due to similar coloration. This species has long been of interest to behavioral and evolutionary ecologists due to its polygyneous mating system, widespread construction of dummy nests, and the male's complex singing behavior. The Marsh wren nests statewide in appropriate wetland habitats. It is particularly common during breeding season around Malheur National Wildlife…

Wigeon drakes are beautifully marked with white pate, green eye stripe, purplish breast and flanks, white belly and wing covert patch, and iridescent black/green speculum. The grayish hen shows white on the wing covert patch. Drakes give a three-note whistle and get progressively noisier as spring approaches and courting flights begin. Medium sized flocks are common in fall and winter, and like geese, will be found grazing pastures, park lawns, and golf courses. It is a rare to locally common breeder in eastern Oregon and rare in summer in western Oregon. It is a common to abundant migrant and wintering…

This medium-sized, shy grebe has bright white cheeks that contrast sharply against a dark crown and rust red neck during the breeding season. An aquatic bird, it breeds in lakes and ponds, usually in forested areas. In Oregon, it is found in waters with hardstem bulrush intermixed with open water over five feet deep. Five to 20 birds at Rocky Point in the Upper Klamath Lake National Wildlife Reserve form the only consistent breeding population in Oregon. The red-necked grebe reaches its greatest numbers during winter along the coast. The red-necked grebe is an Oregon Conservation Strategy Species in the…