The Washington Ornithological Society was chartered in 1988 to increase knowledge of the birds of Washington and to enhance communication among all persons interested in those birds.

To update a name or address for an existing membership, click here.

What WOS has to offer

Membership is open to all persons interested in birds and birding. WOS provides a forum for birders throughout the state to meet and share information on bird identification, biology, population status, and birding sites.

Members receive WOSNews, the bimonthly newsletter of the society, which features Washington Field Notes, a compilation of recent notable state-wide bird sightings.

Washington Birds, our scholarly journal, is sent to all members upon publication.

WOS holds meetings on the first Monday of each month (except July, August, and September) at the Center for Urban Horticulture on the University of Washington Campus. An interesting program is presented and the meetings are open to the public.

Field trips for members are held each month to different areas in the state.

The WOS Annual Conference, open to all members, is held in a different part of the state each year. It includes speakers, workshops, and field trips.

WOS sponsors the Washington Bird Records Committee, which maintains the official state bird list and the birding records which substantiate it.

WOS is a non-profit organization under 501(c)(3) of the Internal Revenue code.   Annual dues are listed on the attached membership application form.

Photo above right: Lesser Yellowlegs by Tom Munson

Washington Ornithological Society. PO Box 31783. Seattle WA. 98103-1783.

Email us: information@wos.org