Pika population bounces back in Columbia River Gorge (Portland Tribune, 8/30/2021)
Meet the … American pica (2016) Oregon Department of Fish and Wildlife
pika
Pikas in the Columbia Gorge
Pikas return to the Gorge — or so researchers think (OPB, 10/30/2020)
Meet the … American pika (2016) Oregon Department of Fish and Wildlife
Pika population
Where are the gorge pikas? Researchers will find them (Portland Tribune, 3/30/2018)
Meet the … American pika (2016) Oregon Department of Fish and Wildlife
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