I often have both Steller's and Scrub Jays in my backyard, south of
downtown Portland, at the same time. Both seem to be common in many
places in the Willamette valley. The third jay species I have seen in
Oregon is the Gray Jay, which I have seen in the (mostly southern)
Cascade mountains. These are the jays that have been the "camp
robbers" on backpacking trips.

And to pass on a point made by Dennis Paulson several years ago in
reply to a post of mine to Tweeters, it is the Steller's (not
Stellar's) Jay.

Cheers,
David Lyles
Portland OR