This may be old news, but I could find a reference in the
message archive...

http://www.inaturalist.org/observations/4855866

The exact location is obscured automatically on I naturalist for
threatened and near-threatened species, so I don't have exact
location details, except to say that it seems to be hanging
with BRANT and wigeon.

--
Mike Patterson
Astoria, OR
That question...
http://www.surfbirds.com/community-blogs/northcoastdiaries/?p=3294