Another idea is a twofer- the gray whales are in Puget sound right now, there are whale watches out of Seattle and I think Edmonds, there are tons of waterfowl lurking behind the whales, and then the whales themselves are just cool to see. Also at the Everett Boatramp, there is a Great Blue Heron rookery, tucked up back along Marine Drive near the boat store, that should be a good site to go with binoculars, there are tons of them there right now. There is also a big Eagle Nest in the Legion Golf Club in Everett, a mating pair is there, you can see it from Marine Drive but may be easier on the golf course itself, when the tree it is in begins leafing out it will be harder to see the nest