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The City of Portland, Oregon

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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, Portland, OR 97204

More Contact Info

Mammals

Beaver, Muskrat and Nutria Identification

The difference between beavers, muskrats and nutria

Bat Monitoring Report

Bats of Oregon

ODFW's handout about bats of Oregon