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Oregon's owls are mostly nocturnal, hunting for insects, fish, frogs, birds, mice and other small mammals in the night. Their hoots, screeches and calls can be heard after dark or early in the morning. Owls don't build nests, but instead use tree cavities, nests created by other species, naturally occurring structures or human-made nest platforms. The Western burrowing owl nests underground in abandoned dens dug by squirrels, prairie dogs and badgers. Learn more about Oregon's owls.

The elk is the largest cervid in Oregon. These heavy-bodied, deer-like mammals have narrow faces tapering to a naked nose pad; relatively small, pointed ears; a heavily maned neck; a back slightly humped at the shoulders, a contrasting rump patch; and a small tail. Pelage color is grayish brown to reddish brown, somewhat lighter among males in winter. The mane is dark brown and the rump patch and tail are cream colored. The underparts (except for a whitish patch between the hind legs) and legs are dark brown to almost blackish. Adult females, their current offspring, and their female offspring…

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…

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…