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See how California sea lions are taking their toll on Oregon's threatened fisheries. Did you know that the Tiny Elk Rock Island, in the Willamette River just south of downtown, was once a mountain? And find out how city sewage ponds can be prime locations for both migrating waterfowl and birdwatchers.

Segments in this Episode

Oregon Field Guide

Sea Lion Study

California Sea lions are taking their toll on Oregon's threatened fisheries.

Oregon Field Guide

Elk Rock in Willamette River

Tiny Elk Rock Island, in the Willamette River just south of downtown, was once a mountain.

Oregon Field Guide

Sewage Ponds of Portland

City sewage ponds can be prime locations for both migrating waterfowl and birdwatchers.

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Upcoming Broadcasts

Mason Bees/Old Growth and Birds (3003)

October 25, 8:30 p.m. [OPB TV]

Oregon Field Guide, #3005

November 8, 8:30 p.m. [OPB TV]

All Season 10


Major Support Provided By:
Carol and Velma Saling Foundation
William K. Blount Family

Additional Support Provided By:
Coit Family Foundation
Kay Kitagawa and Andy Johnson-Laird
Christine and David Vernier
Greenfield/Hartline Habitat Conservation Fund of the Nature Conservancy.

Special thanks for support by:
The Roundhouse Foundation, Barbara Emily Knudsen Charitable Foundation, Bonnie and Peter Reagan, Lee and Marcia Stevenson and Elaine Whitley