In the second video there is mention of the coyote hunting 'coypu'; this is the common name for nutria in South America, where they were introduced from. The scientific name is Myocastor coypus. Coyotes do in fact hunt nutria / coypu when they can catch them.
Between the Coho and steelhead, and also the otters, coyotes and beavers at the park and at other places in the watershed it seems we have a 'Field of Dreams' scenario playing out here- 'If you build it, they will come'.
Thanks again for sharing Jessica!
If you have other wildlife sightings, or if you have video or photos to share, please contact the CSP at firstname.lastname@example.org or https://www.crystalspringspdx.org/