Olympic Peninsula Audubon Society - Serves Clallam County. Meetings, field trips, projects, and local birding. - http://www.olympicpeninsulaaudubon.org/
Vancouver Audubon Society - Chapter events and Clark County birding guide. - http://vancouveraudubon.org/
Willapa Hills Audubon Society - Serves southwestern Washington. Chapter news and events, birding areas, wildlife sightings, photos, and information about the geology of the area. - http://www.willapahillsaudubon.org/
Kitsap Audubon Society - Poulsbo area meetings, field trips, sightings, projects, and bird checklist. - http://www.kitsapaudubon.org/
Palouse Audubon Society - Serves the Palouse region of North Central Idaho and Eastern Washington. Local birding hotspots. - http://www.palouseaudubon.org/
Skagit Audubon Society - Chapter events, birding locations, sightings, and bird checklist. - http://www.fidalgo.net/~audubon/
Rainier Audubon Society - Serves South King County. Newsletters, programs, and Birdwatching in South King County. - http://www.rainieraudubon.org/
Central Basin Audubon Society - Serves central Washington's Columbia River Basin. Chapter and local birding information. - http://www.cbas.org/
Seattle Audubon Society - Society and conservation information and events. - http://www.seattleaudubon.org/
Audubon-Washington - Extensive site detailing the state office's work in protecting wildlife habitats. Includes sections on Audubon Centers, Important Bird Areas, and Birdwatching in Washington State. - http://wa.audubon.org/