The Biggest Week in American Birding

Black Swamp Bird Observatory 13551 W State Route 2, Oak Harbor, OH

Black Swamp Bird Observatory (BSBO) is thrilled to announce that we are planning an IN-PERSON festival for 2022! We're adding some exciting new field trips, and all of your favorite Biggest Week activities are back, read more >>

The Biggest Week In American Birding

Black Swamp Bird Observatory 13551 W State Route 2, Oak Harbor, OH

The Biggest Week in American Birding is a 10-day festival in northwest Ohio, "The Warbler Capital of the World!" Immerse yourself in spring songbird migration and experience some of the best birding North America has read more >>