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Humpback whales are seen during their north and south migrations from northern waters to breeding grounds near Hawaii and also feeding offshore during the summer. Humpbacks have been documented travelling 3,000 miles between Alaska and Hawaii in as few as 36 days. They are usually five to 15 miles offshore, so they are most often seen by fishers. Humpback whales live in all major oceans from the equator to sub-polar latitudes. Humpbacks eat primarily krill and small fish and can consume 3,000 pounds of food a day. Humpbacks grow to 60 feet in length with a stocky body, an obvious…

Del Norte salamanders are solid brown or black in color. Some individuals, especially younger salamanders, have a reddish-orange to red stripe along their backs, but it generally fades as they mature. As the species’ scientific name suggests, individuals have long bodies in relation to their short limbs. The Del Norte salamander is one of the lungless salamander species that breathes through it’s skin. They can grow to six inches in total length. Del Norte salamanders live in older redwood or Douglas-fir forests and commonly use rocky substrates rubble, talus (rock fragment piles) and rock outcroppings for cover. During hot and…

Adult treefrogs have a dark mask that extends from the tip of the nose across the eyes to the shoulders. Coloration varies between individuals, ranging from green or reddish to brown or gray. Most have dark blotches along their sides with light colored bumpy undersides. They have special skin glands that produce a waxy coating to keep their skin moist. Male treefrogs have a dark gray, inflatable throat pouch during the breeding season. As the smallest frog species in Oregon, adult Northern Pacific treefrogs only grow to two inches in length. During the non-breeding season, this treefrog is found in…

The bobcat is the smallest wild felid in Oregon, with females being considerably smaller than males. The bobcat is about twice the size of a domestic cat, but its legs are longer, its tail is shorter, and its body is more muscular and compact. The feet are relatively small and the bobcat is not well adapted to negotiate deep snow. In general, the variously spotted pelage is yellowish with grayish overtones in winter and with reddish overtones in summer, reflecting the two annual molts. The ears are black with a large white spot and are equipped with short black tufts…

The bighorn sheep is a medium-sized, largely brownish bovid with a white rump patch, muzzle, venter, and rear portion of the legs. The tail is blackish brown on the exposed surface. The hooves are equipped with a rubberlike pad that facilitates negotiating rocky terrain. The ears are relatively small and somewhat pointed. Both sexes are equipped with horns; those of males are massive and spiral outward, whereas those of females are relatively thin, recurved, and mostly directed upward and posteriorly. Horn growth reflects nutritional status. Bighorn sheep are capable of moving with speed and agility through the precipitous terrain in…

Lizards are more like ancient reptiles than either snakes or turtles. There are more than 2,500 species of lizards known in the world and they range from legless, snake-like varieties to the better known, four-legged type with five toes on each foot and scaly skin. Most lizards lay eggs but some give birth to live young. Most eat insects and small animals; some eat plants. Many lizards are very fast and most can swim. Some can even "swim" through sand, just below the surface. Lizards don't like to be caught and several species will take some pretty drastic steps to…

Sperm whales inhabit all oceans of the world, and have been observed in Oregon waters from March through November. Sperm whales are usually found in deep off-shore waters so they are only occasionally seen off Oregon by fishers and birders on offshore trips. It is the largest of the toothed whales and possesses the largest brain of any animal with an enormous head to house it. Sperm whales have 20 to 26 large conical teeth found only in their lower jaw. A mature male can grow to 52 feet long with its head representing up to one-third of its length…

The American beaver, the largest rodent in North America, commonly weighs in excess of 55 pounds. The beaver is highly modified for aquatic life with a compact body, paddle shaped tail, webbed hind feet, valves that close their ears and nose while diving, and a rich oil gland that waterproofs their fur. Under water, membranes cover the eyes. Claws on the first and second toes are split and function in grooming; the ears and eyes are small; the tail is broad, scaly and nearly without hairs. The thick underfur is overlain with coarse guard hairs; overall, the pelage (coat) is…

Features: These fish have dark blue backs, silver sides and bellies, and very long pectoral (side) fins. Albacore caught off the Pacific Coast are generally 21 to 30 inches long with the largest fish running about 35 pounds. Habitat: Tuna are pelagic species, meaning they spend their lives in the open ocean. Albacore generally show up 15-200 miles or more off the Pacific Coast in mid-July and stick around through September. Albacore are usually found where surface water temperatures are at least 59 degrees Fahrenheit and the water has a distinct clear blue color (this is where chlorophyll levels are…

Features: Butter clams have oval and oblong shaped shells with heavy, thick valves and hinge. Their shells have fine concentric rings. When the shell is open a little, you can see the pale ruffled mantle reminiscent of a tuxedo. Like the gaper clam, they have their two siphons fused together into one "neck." Average adult size is 3-4 inches but can range up to 5 inches. Butter clams can live more than 20 years. Habitat: Butter clams can be found in a wide variety of substrates but prefer sand and gravel/cobble beaches. They live approximately 6-12 inches deep and can…