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Cassin's auklet uses a few offshore lands for breeding in Oregon. It forages in the marine environment and nests in a chamber under rocks or digs its own burrow, two to six feet long, in the soil. This species spends its day at sea and only comes to the burrow at night, perhaps to reduce discovery by predacious Western gulls. Although few Cassin's auklets nest in Oregon, nesting sites are found along the entire coast where offshore rocks provide appropriate habitat. During the non-breeding season this is the most abundant alcid seen at sea in Oregon. They are present offshore…

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…

A research study that began in 2012 confirmed Sierra Nevada red fox presence in the Oregon Cascades, specifically in the Mt. Jefferson, Mt. Washington, and Three Sisters Wilderness Areas. Confirmation was through genetic testing of hair and scat samples. Sierra Nevada red fox is a subspecies of Red fox that live in high elevations. They are slightly darker than Red fox and are highly specialized to montane (mountain) ecosystems. In the red color phase, the upper body is reddish-brown with white chin, cheeks, throat and belly. This fox ranges from silver to black in the black/silver color phase with silver…

Features: Adult drakes have a black bill, buff head, gray body, and black upper and lower tail coverts. Hens are nondescript brown ducks with a spotted, yellowish-orange bill with black edges. Unique among dabbling ducks, the gadwall has a partly white speculum (rear part of the wing) that can be seen when the bird is in flight. Habitat: Submerged aquatic vegetation makes up the majority of the gadwall's diet. As a result, they are often found feeding far from the shoreline, in deeper water than most other dabbling ducks. Can be abundant is eastern Oregon early in the season, but…

This seabird, the most abundant in Oregon, has recently suffered severe declines or significant population shift in the eastern North Pacific. Similar in shape to thin, long-winged gulls, sooty shearwaters are dark sooty gray with limited amounts of white on the underwing coverts. They glide on wind currents along wave troughs on stiff wings. Gregarious, they form huge loose flocks in migration, often passing for hours within site of land-based observers. In Oregon, it is an abundant summer visitor and transient offshore on the inner shelf and is most numerous three to six miles offshore. Hear the call of the…

The rock scallop ( Crassadoma gigantea) lives in the swift current shallows of Oregon's nearshore rocky reefs. Due to the coloration at its hinge, it is also known as the purple hinged scallop. These highly specialized scallops cement themselves to rocks, primarily at depths from 10 to 150 feet. They feed on microscopic plankton they filter from the water and reproduce via broadcast spawning. In order for spawning to be successful, they need to be close to one another. For this reason, it is best to harvest solitary rock scallops and minimize harvest pressure on dense aggregations which are more…

One of the most numerous breeding birds in Douglas-fir and true fir forests of western Oregon is the Hermit warbler, yet it is often overlooked. This may be surprising, given the male's bold colors; however, it seldom descends from the higher reaches of the forest canopy. If you are familiar with its song, you can often hear three to five males singing on a spring morning from many places in appropriate habitat. The male Hermit warbler has a bright yellow head, set off by a black throat and nape. The gray back is marked with black stripes that vary in…

The drake gadwall is a large mostly gray dabbling duck. Adult drakes have a black bill, buff head, gray body, and black upper and lower tail coverts. Hens are nondescript brown ducks with a spotted, yellowish-orange bill with black edges. Gadwalls are unique among dabbling ducks in having a partly white speculum which can be observed in flight. Common vocalizations include the deep, reed-like sounds of the male and the female's quacking, similar to but more nasal and higher pitched than the mallard hen. It is an abundant breeder locally in eastern Oregon and an uncommon breeder in western Oregon…

This largest of the commonly encountered loons is perfectly built for underwater prey pursuit. Ungainly on land, this may be the price it pays for being a great diver. Large and blocky-headed, with a straight, robust bill, the common loon is separated from the yellow-billed by its straight bill and winter face pattern, and from smaller loons by its more angular head and often-retracted robust neck. Black head, white "necklace," incomplete black-and-white neckband, and white-checkered black back define breeding adults. Dark gray upperparts of winter adults shade to white underparts. Take-off is impossible by land and labored on water, but…

The Striped skunk is about the size of a house cat with a pointed head; slightly upturned, nearly spherical nose pad; and beady black eyes. The pelage is entirely black except for a narrow white stripe on the forehead and nose, a white pate leading to two diverging white stripes on the back that extend partly or completely to the rump. Entirely white skunks, or skunks with the black replaced by seal brown or the white replaced by yellow are also know to occur. Without doubt, the most widely recognized characteristic of the Striped skunk is the pungent odor of…

This chunky swallow is readily recognized by its square tail and orangish rump patch. It nests colonially and has taken to human-made structures so well that it has greatly expanded its range into many areas otherwise not suitable for it. It does not do well in urban settings, however, and quickly disappears when areas become densely settled. The unique gourd-shaped mud nest is often usurped by other species for nesting and is often used for protective roosting sites by rosy-finches and other wintering species. It is a locally common to abundant breeding bird near water throughout most of Oregon. Its…

Worldwide, frogs and toads are in trouble because of habitat loss, pollution, pesticides, climate change, diseases, the pet trade and competition from invasive species. Many of Oregon's 12 native species of frogs and toads are listed as Oregon Conservation Strategy Species of concern. Frogs and toads belong to the same animal group but are very different. Toads have dry, rough and bumpy skin covering a wide body while frogs are slender with smooth, moist skin. Frog eyes are higher on the head than toads and are rounder and bulging. And there's a reason we play "leap frog" - frogs take…

The common goldeneye drake is a strikingly handsome black-and-white diver about the size of a greater scaup. Goldeneyes are strong, fast flyers nicknamed "Whistlers" for the sound of their primaries as they zoom past on a still day. Drakes have a black head with a white spot below and in front of the eye, white neck, breast and flanks and a black back and tail. Hens have a brown head, light neck, breast and belly, brown backs and flanks. They are fairly silent and usually alone or in small groups. They tend to remain apart from other ducks. It is…

The California kangaroo rat is the largest kangaroo rat in Oregon, but is only of moderate size within the genus. It has a moderately broad face, relatively large ears, and awl-shaped lower incisors. The tail is 150 percent of the length of the head and body. It is the darkest-colored kangaroo rat in Oregon. The pelage of the dorsum is composed of hairs with dark-gray bases, a narrow dark-buff band and black terminus. The venter, feet, upper lip,; and base, sides, and tip of tail are white and there is a white spot above each eye and behind each ear…