The Zephyr butterfly is now known as a Hoary Comma butterfly or a Hoary Anglewing, zephyrus butterfly.
Lushootseed Name for Butterfly: Click Here to Listen.
Scientific Name: Polygonia gracilis
Photo by Judy Gallagher 
Photo by University of Wyoming Bio-Diversity Institute
The Hoary Comma have an upper-side that is dark orange and an underside that is greyish-brown. The butterflies lay their eggs on the underside of currant leaves in spring up until June.
Inside the egg the caterpillar (larva) grows. The caterpillar eats the leaves of the host plant, in this case, Red Flowering Currants and azaleas. Once the caterpillar is fully grown, it creates a pupa (chrysalis) – a vessel to protect it from predators.
Photo by Richard Griffin
Inside this vessel, the caterpillar turns into a butterfly and emerges in July. The adult feeds on nectar from plants like aster flowers and rabbit brush They also seek out sapsucker holes in trees to find sap. They hibernate over the winter.
For More information about this butterfly go to the Butterflies and Moths of North America website
https://www.butterfliesandmoths.org/species/Polygonia-gracilis
Butterflies of Oregon website also has information.
https://www.butterfliesoforegon.com/polygonia-gracilis