Young raccoons are very curious/USFWS Photo

Mammals big and small inhabit the refuge. These furred animals live in the sloughs and the tops of trees, the open fields and shores of freshwater streams. Discover some of the mammals that live at Julia Butler Hansen Refuge for the Columbian White-tailed Deer…

  • Bats

    Bats have large ears and sharp teeth that help them catch and eat prey/Photo Courtesy of Jackie Ferrier

    The forests of Julia Butler Hansen Refuge are home to many species of bats. Bats roost in hollow trees, cavities made by other animals, and within and under the bark of large trees. 

    Discover more about local bats…

  • Black-tailed Deer

    Black-tailed deer have a distinctive black forehead/Photo Courtesy of Dr. Madeline Kalbach

    A relative of the mule deer, black-tailed deer are a common site in neighbor hoods, meadows and forest edges. 

    Uncover more about the sometimes shy black-tailed deer…

  • Columbian White-tailed Deer

    Columbian white-tailed deer/USFWS Photo

    This unique sub-species of white-tailed deer is only found in two areas of Washington and Oregon. The Julia Butler Hansen refuge was specifically created to help this federally endangered deer.

    Find out more about this distinctive deer...

  • Coyote

    Coyotes have keen senses such as sharp eyesight, good hearing and strong nose/Photo Courtesy of Rollin Bannow

    This wild canine frequents open fields and forest edges in the refuge where it hunts for mice and voles. Coyotes are generalists and will eat a varied diet, including fawns, fruits and berries.

    Learn more about this adaptable mammal…

  • Douglas' Squirrel

    Douglas' squirrels have nibble toes that help them grasp food/Photo Courtesy of Dr. Madeline Kalbach

    More often heard before it is seen, the Douglas’ squirrel has a loud chattering call. A forest resident, it primarily eats seeds and nuts.

    Discover how to identify this squirrel’s dinner table…

  • Harbor Seal

    Harbor seals can shut their nostils to avoid getting water in them when they dive/Photo Courtesy of Dr. Madeline Kalbach

    Built for an aquatic life, the harbor seal’s ears and nostrils can close to become watertight while underwater.

    Find out more about this graceful swimmer…

  • Long-tailed Weasel

    The long tailed weasel pounces on its prey then uses its long body to wrap around and trip prey/Photo Courtesy of

    The long-tailed weasel is occasional seen crossing roads or hunting in refuge fields. The long, slender body of this weasel helps it find and catch prey.

    Learn how it does it…


  • North American Porcupine

    The quills of this porcupine are modified hairs/Photo Courtesy of Suzy Whittey

    The quills of a porcupine are modified hairs. It is not true that these mammals can throw their quills when scared.

    Uncover the facts about porcupines…

  • Northern Raccoon

    Northern raccoons wear a distinctive black mask under white eyebrows/Photo Courtesy of Dr Madeline Kalbach

    The front feet of the northern raccoon are highly sensitive and help them find and eat a variety of foods at the refuge.

    Find out more about this black-masked mammal…


  • Northern River Otter

    Otters have a dense coat to help them stay warm and dry in their watery habitat/Photo Courtesy of Rollin Bannow

    One of the most playful refuge residents, river otters are generally found in pairs or families.

    Learn more about this charismatic hunter…

  • Nutria

    nutria 150x118

    Introduced from South America for its dense fur, released nutria have become a naturalized pest.

    Discover more about these aquatic mammals with a large appetite...

  • Roosevelt Elk

    Roosevelt elk are one of the largest mammals in Willapa National Wildlife Refuge/Photo Courtesy of Rollin Bannow

    This long-legged browser competes wih Columbian white-tailed deer for food and shelter. Visitors may find scat, tracks, scrapes and hair left behind by this mammal.

    Uncover more about Roosevelt elk…

  • Snowshoe Hare

    The snowshoe hares at Willapa National Wildlife Refueg do not turn white in the winter because it rarely snows here/Photo Courtesy of Dr. Madeline Kalbach

    Unlike their more northern cousins, the snowshoe hares living in the refuge do not turn white in the winter.

    Discover why the local hares are different…

  • Townsend's Chipmunk

    The Townsend's chipmunk is a highly active forager with stripes the length of its face and body/Photo Courtesy of Dr. Madeline Kalbach

    These small and industrious mammals are most often seen on the move.

    Find out why chipmunks are so busy…

  • Townsend's Vole

    townsends voles are a vital part of the Refuge food web/Princeton University

    This large vole is abundant in wet grasslands and marshy habitats.

    Uncover why its a vital to other Refuge wildlife.