At least as of 9AM (and for 20 minutes before), there's an adult male Harlequin Duck feeding at Smith Cove (viewed best from the Park), just off shore, next to the "Phoenix" which is docked in the West slip (Terminal 91). Couple a photos and a video:
https://www.flickr.com/photos/rkclf/51240530588/in/dateposted-public/
Elaine
elc at uw dot edu
Seattle