About WOS

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

WOS is a non-profit organization under 501(c)(3) of the Internal Revenue code.


Our bimonthly newsletter, WOSNews, is an online publication which features member profiles, field trip summaries, Washington Field Notes, and much more.

Washington Birds

Members also receive Washington Birds, our scholarly journal.

Monthly Meetings

WOS normally presents in-person monthly programs, open to all, not just WOS members, so please feel free to bring a guest! Meetings are on the first Monday of each month except July, August, and September, at the Center for Urban Horticulture on the University of Washington Seattle Campus.  However, during the pandemic, in-person meetings have been replaced with virtual meetings conducted using GoToMeeting app and have been held during all 12 months of the year. Please see the Monthly Meetings page for details.

Field Trips

Birding field trips for members are offered year-round and to many different areas in the state.

Annual Conference

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.

Washington Bird Records Committee

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

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