I participated in the annual raptor count on the Skagit and Samish Flats. That is mostly I tagged along with a couple of folks who knew what they were doing. We counted 53 raptors in our section. While doing the count we observed a large flock of Anser casrulescens (snow goose) flying into area a bit west of us just north of LaConner. So after the raptor counting was complete we detoured out to check out the geese. I recently posted on this population HERE.
The vast majority of the geese are mostly white, but there is a gray/blue morph.
The blue phase goose is just to the left of center with head down