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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…

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…

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…

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…

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…

This small, rich-brown wren is only slightly larger than a quarter, and has a tail quite short for a wren. A quiet observer in the forest will see these birds hop in and out and all over logs, snags, shrubs, twigs, and limbs on the forest floor. It has been said that the song of this bird is larger than the bird itself. The Winter wren breed from Coos County southward and in eastern Oregon in the Blue and Steens mountains. It retreats from high altitudes in winter where snow pack is heavy. Migration probably occurs throughout the state, but…

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 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…

While recreationally harvesting green crab has been allowed for decades, the Oregon Fish and Wildlife Commission recently increased the daily bag limit to 35 crab. This gives recreational shellfishers an opportunity to help native shellfish by taking more of these invaders home. European green crab are an invasive species in Oregon. While recreational harvest is allowed (35 per day), harvesters must correctly identify these crabs (see below) as they often are mistaken for native species. Commercially harvesting green crab is prohibited. Green crab: Compete with native crabs for food. Larger green crab may eat smaller native shellfish. May disturb eelgrass…