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.

WOSNews

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

Washington Birds

WOS also publishes Washington Birds, our scholarly journal, every several years. It is available for reading or download on this website.

A Birder’s Guide to Washington

WOS members authored the authoritative 613-page bird-finding guide for Washington State. The revised second edition, published in 2015, is available for free online.

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. 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 and occasionally in Oregon. 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.

Tweeters Archives

WOS hosts the archives of the birding-related listserv for Washington State called Tweeters. The tens of thousands of messages since 1984 up to the year before the current year are searchable and browsable.

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