Hosted by the Evanston North Shore Bird Club, Bill Tweit will present “Citizen Science: a Personal History” at 7:30 p.m. on Oct. 22 at the Ecology Center, 2024 McCormick Blvd.

Mr. Tweit will discuss “What is Citizen Science?” and “How can citizens contribute to Citizen Science, and what is its importance?” He is responsible for managing the salmon fisheries in the Columbia River and representing Washington on the Council that oversees the groundfish harvest in the rich waters off Alaska.

Mr. Tweit grew up mentored by members of Evanston North Shore Bird Club, and birding has remained a constant in his life, both as a relief valve and a way to contribute to conservation. He is a regular contributor to a broad range of citizen science projects and bird counts.

In his talk, he will compare three very different approaches to citizen science, providing an instructive overview of the benefits that it provides for conservation.  The event is free and open to the public; information is available at