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Friends of the Refuge Staff

Bonnie Anderson, Administrative Assistant to Friends of Tualatin River National Wildlife Refuge since 2010, is responsible for the day to day office responsibilities of the organization including payroll management, grant management, government contract management and grant writing. Bonnie serves on several Friends' committees, including Membership, Outreach, Branding and Development, Nature Store, Restoration, Website, Social Media, Newsletter, Summer Nature Camp, Human Resources and Hiring and Annual Budget Review. 

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Seth Winkelhake is the Friend’s Environmental Education Specialist. Born and raised in Portland he has experience with a wide range of environmental education groups in the region including Tualatin Hills Park and Recreation District, the Oregon Zoo, Metro, and Jackson Bottom Wetlands. Seth is an accomplished wildlife tracker with a Cybertracker level III Track and Sign certification and he has a bachelor's degree in Cultural Anthropology from the University of Oregon. He has lived in both Germany and South Africa and traveled to many other countries but always comes back to Oregon. His favorite animals are the Rough-skinned newt and Asian elephants.

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Nathan Kossnar is the Friend’s Invasive Species Technician who was brought on to assist the biological and restoration goals of the Tualatin River National Wildlife Refuge.  As a Chicago native, Nathan moved to the Pacific Northwest in 2014 and completed a B.S. in Environmental Science and Management at Portland State University.  Since moving to Portland, Nathan has worked for Columbia Land Trust and Clark County Vegetation Management helping monitor and treat invasive species in order to protect sensitive PNW habitats.  When he’s not doing fieldwork, he can be found hiking on local trails with his dog, Wyatt.

© Friends of Tualatin River National Wildlife Refuge
    19255 SW Pacific Hwy
    Sherwood OR 97140

We are a 501(c)(3) non-profit organization dedicated to supporting the mission of the Tualatin River National Wildlife Refuge 

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