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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…

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…

These small, fast flying seabirds are unique among alcids in North America in their use of coastal coniferous forests, primarily old-growth trees, as nesting habitat. Their solitary nests are usually concealed within the forest canopy, and breeding birds are cryptic and primarily crepuscular at nest sites. Because of their secretive behavior and elusive nests, Marbled murrelets were considered the "enigma of the Pacific" and were one of the last ornithological mysteries in North America, as the first nest was not discovered until 1974. Distribution at inland nesting sites is fragmented, as birds occur only in areas where suitable habitat remains…

Bobolinks summer in Oregon's eastern grasslands and meadows, singing what has been described as a bubbling delirium of ecstatic music that flows from the throat of the bird like sparkling champagne. The yellow-brown female, juvenile or non-breeding male may at first appear to be a sparrow, but the breeding male has an astonishing and diagnostic backwards tuxedo pattern of buff on the nape and white rump and scapulars on an otherwise black body. The Bobolink is a regular, locally common breeder at the Malheur National Wildlife Refuge and a few scattered pairs occur in northeast Oregon. West of the Cascades…

The Northern harrier is a slender, medium-sized hawk characterized by a noticeably long tail, bold white rump patch, and owl-like face. Commonly encountered in large expanses of open country, its main hunting technique is through use of a distinctive buoyant, gliding flight low over the ground that relies heavily on visual as well as auditory cues to detect prey. The larger females have rich brown upperparts while adult males are mostly light to medium gray, sometimes appearing almost ghostly silvery-white. Males are noted for their high-spirited and acrobatic courtship displays, in particular a series of dives and barrel rolls in…

The majestic trumpeter swan is the largest of our native waterfowl and one of the heaviest flying birds in the world with males sometimes exceeding 30 pounds. Historically hunted to the brink of extinction, it was recognized as an endangered species long before there was an Endangered Species Act, and its recovery is a conservation success story. The adult's snow-white plumage with contrasting black bill and feet and 8-foot wingspan define this magnificent bird. Their neck is as long as their body and is used to reach food at the marsh bottom. In spring, the trumpeter swan is a locally…