One of my earliest blog posts (bird-identification) included a picture of oyster catchers on an outcrop on the east shore of Marrowstone Island.
Oyster catchers at Liplip Point
Dave Wenning has a better picture at wildfidalgo.blogspot.com/2012/04/visiting-old-friends.html and a link to a great write up he did on exploring-kukutali, an island near Deception Pass. He had a remarkable tid bit on the island; back in the 1960s the island was being considered as a nuclear power plant site. Anyway a worthwhile read and a great idea for a Saturday trip.