It always pays to be watching along the Vashon-Fauntleroy ferry route. Mid-May through mid-June makes the slowest time when the highlights consist of Glaucous-winged Gulls and Rock Pigeon.
Towards the end of June and continuing into August, the fall migration first brings California Gulls followed by Bonaparte's, Mew Gulls and Common Terns. After the gulls and terns, Parasitic Jaegers cruise by looking for an opportunity to steal a meal.
From October through April, expect three species of loons, three species of grebes, scoters, both goldeneye and mergansers. This run and the Tahlequah run (south Vashon) provide the best looks at Red-necked Phalarope swirling through long strands of debris.
From January through March, a few Brant geese swim in small bands along tidal rips. Small numbers of Rhinoceros Auklets usually show up year-round.
From Birds of Vashon Island by Ed Swan, Vashon birding guide 206-463-7976
Photo by Pete Murray