American Beaver


  • beaver chewing on a branch during the Winter

    Beavers get a new home

    Idaho Department of Fish and Game releases some beavers in Cottonwood Creek in the South Hills after they had gotten in trouble in the valley below.

  • Evening Lecture Series-Beaver and Amphibian Restoration in SW Idaho

    Idaho Fish and Game Regional Wildlife Diversity Biologist, Bill Bosworth will share his experience and project details regarding amphibian and beaver restoration in SW Idaho. Lectures are free and open to the public. Our evening sessions are geared towards adult audiences, but children may attend with an adult.

  • Beaver at MKNC

    Nighttime engineering at the MK Nature Center

    Visitors to the MK Nature Center can see evidence of the nighttime work of a pair of newly resident beavers.  Look for underwater caches of willow and cottonwood branches along the existing beaver dam. 

  • Red fox on the StreamWalk

    New Idaho trappers encouraged to complete trapper education course

    Beginning on July 1, 2018, every trapper who purchased their first trapping license after June 30, 2011 will be required to attend and pass a mandatory trapper education course before they can purchase an Idaho trapping license.

    Trappers that have successfully passed and are certified through the Idaho voluntary trapper education course are exempt, but new trappers will be required to take the course starting in 2018. People who have taken only a wolf trapping education course are not exempt and must take the Idaho trapper education course.

American Beaver

Castor canadensis

IDAPA Classification: Furbearing Animals
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Health Issues Which May Affect This Animal

What Causes This Disease?

Tularemia is a bacterial disease caused by the bacteria Francisella tularensis.

Where Is The Disease Found?

Tularemia occurs in many parts of North America in both the terrestrial and aquatic forms. The disease has been documented in aquatic rodents and rabbits in Idaho but is not common.

Signs of Disease

In rabbits and hares clinical signs include lethargy and ill thrift. Tularemia causes lesions on the spleen and liver which are usually swollen and contain white spots. In humans, signs of Tularemia vary depending on the route of infection. Skin ulcers can be seen, usually on the hands, and typically associated with cuts or scratches acquired while skinning hares/rabbits. Glands can also become quite swollen.

Read More About Tuleremia