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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…

Greater sage-grouse are best known for their elaborate courtship displays that occur on traditional strutting grounds, known as leks, where males gather each spring. At all seasons, both sexes are readily identified by large size and chicken-like build. Adults are mottled dark gray, black and buff, with black bellies and pointed tails. Males have specializations used in display. Their tail feathers are long and pointed with white spots. They have yellow combs over each eye and a chest sac with two bare, yellow patches of skin which are inflated during display. The display lasts only a few seconds and is…

Features: These fish are light silvery-white, dark on top, and have up to 8 dark, broken stripes running along the sides of their bodies. They are typically less than 10 lbs but can grow to 22 lbs. They have two dorsal fins, the front one with eight or nine spines and the rear one with one spine and 13 or 14 soft rays. Habitat: Hybrid bass were originally stocked in Tenmile Lakes on the south coast and in Ana Reservoir in Lake County. They have since been introduced into Thompson Reservoir, also in Lake County. The only established population is…

This large bird of prey is dark above, white below, and has a visible dark spot at the wrist of the wing when flying. The head is black and white. 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 is good evidence of Ospreys. The Osprey breed…

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…

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…

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…

Features: Green sunfish have more of a bass-shaped body and a larger mouth than the other sunfishes, other than the warmouth. Also, unlike other sunfish except the warmouth, the pectoral fin is rounded, rather than pointed. Green sunfish are olive green on the back and sides with a yellowish-copper or brassy hue on the lower sides of the belly. Dusky, vertical bars are often present. Turquoise mottling, often in the form of bars, radiates backward from the snout and eye. They have a dark spot at the base of the rear lobe of the dorsal fin. Habitat: Green sunfish are…

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 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 cavity-nesting thrush is one of three bluebird species found only in North America. Previously abundant in western Oregon, the Western bluebird suffered a precipitous decline through degradation of habitat and avian competition. The male has a cobalt blue head and throat, blue wings and tail edged with dusky brown, russet breast and flanks, gray-blue belly and undertail coverts. Female colorations are subdued: head and throat gray, back gray-brown, wings and tail pale blue, breast and flanks pale russet. The amount and brightness of blue and russet are brighter on older birds. The Western bluebird breeds in open habitats with…

The skies near favored stopover locations are filled twice annually with the sights and sounds of these geese as they migrate between Arctic breeding grounds and wintering areas farther south. Snow geese share very similar all-white plumage and black wing tips with the less common Ross's goose. These are Oregon's only wild white geese. It is predominantly a spring and fall migrant, especially abundant in large wetland and agricultural complexes such as Malheur National Wildlife Refuge, Silvies River floodplain in Harney County, Lower Klamath National Wildlife Refuge and Klamath Wildlife Area. Wintering snow geese in Oregon are found primarily along…