Sampling aquatic insects, including mayflies and stoneflies, provides important insights into the health of Whychus Creek. Each summer, volunteers gather at Creekside Park in Sisters for a sampling training. Then, in teams of two to four, community volunteers and partners use nets to collect aquatic insect samples from the stream at different sites along Whychus Creek. This event is a great opportunity to learn about habitat restoration on Whychus Creek for salmon and steelhead, spend a day along less-visited reaches of the creek, and contribute to ongoing research about how restoration actions are changing stream conditions.

This year's stream sampling days will take place on Thursday, August 7th and Friday, August 8th 2025. Online registration will open on Thursday, May 1st. Thank you to all of our community volunteers, partners, and event supporters for making stream sampling days possible!