No need to guess, the identity has already been stated by others. It's a
regular nesting species in Oregon, found close to plausible nesting
habitat where one was found about four years prior, reported on the
MidValley birding list but not more widely due to concerns about
sensitivity.
On Fri, 2018-01-12 at 10:42 -0800, Robert O'Brien wrote:
I guess we can now try to guess what the bird species is. Sort of like
guessing the next state bird in Oregon. Maybe it is the next state
bird.
Bob O'Brien