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Segments in this Episode

Oregon Field Guide

Crayfish Invasion

OPB | Feb. 17, 2011 12:30 p.m.

Eastern crayfish invade Oregon rivers through a surprise route: 4th Grade classrooms.

Oregon Field Guide

Lichen

OPB | Feb. 17, 2011 12:30 p.m.

Lichen can teaches us volumes about the quality of the air we breathe.

Oregon Field Guide

Heritage Trees

OPB | Feb. 17, 2011 12:30 p.m.

Portland’s Heritage Tree program recognizes and preserves trees with special significance.

Oregon Field Guide

Working Dogs for Conservation

OPB | Feb. 17, 2011 12:30 p.m.

A conservation dog uses his amazing sense of smell to help a researcher find rare plants.

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Upcoming Broadcasts

All Season 22

Amphibian Egg Masses; Lamprey Decline; Mazama Archive

Oregon Field Guide: Episode #2213
Original Broadcast: March 31, 2011

Exploring the Oregon Dunes

Oregon Field Guide: Episode #2212
Original Broadcast: March 24, 2011

Astrophotography; Stand Up Paddle; Hot Fish, Cold Fish

Oregon Field Guide: Episode #2211
Original Broadcast: March 3, 2011

Crayfish Invasion; Heritage Trees; Lichen; Working Dogs for Conservation

Oregon Field Guide: Episode #2210
Original Broadcast: February 17, 2011

Gresham Turtles; LIDAR/Pits of Mystery; White-Nose Syndrome

Oregon Field Guide: Episode #2209
Original Broadcast: February 10, 2011

Diving Crater Lake; Pixieland Restored; Portland Mounted Patrol Unit

Oregon Field Guide: Episode #2208
Original Broadcast: February 3, 2011

Living with Wolves: An Oregon Field Guide Special

Oregon Field Guide: Episode #2207
Original Broadcast: November 18, 2010

Bagby Hot Springs; Falcon Comeback; Lewis's Woodpeckers

Oregon Field Guide: Episode #2206
Original Broadcast: November 11, 2010

Log Drives; Sharp-tailed Grouse Update; Sustainable Prisons Project

Oregon Field Guide: Episode #2205
Original Broadcast: November 4, 2010

Beaver Assisted Restoration; Fish Screens; Juniper Control

Oregon Field Guide: Episode #2204
Original Broadcast: October 28, 2010

Burns Round-up and Branding; Gray Whales; Landsailing

Oregon Field Guide: Episode #2203
Original Broadcast: October 21, 2010

Forest Park: Portland's Backyard Gem

Oregon Field Guide: Episode #2202
Original Broadcast: October 14, 2010

Birdathon!; Cattle Rustling; Sturgeon Balls

Oregon Field Guide: Episode #2201
Original Broadcast: October 7, 2010


Major Support Provided By: Dorothy D. Gage and Dan Stanton, Fred and Clara Dolen Charitable Foundation

Additional Support Provided By: Kay Kitagawa and Andy Johnson-Laird, Christine and David Vernier, Coit Family Foundation, Beth Torry Miller Trust, Greenfield/Hartline Habitat Conservation Fund of the Nature Conservancy, The Roundhouse Foundation, Bonnie and Peter Reagan