Christmas Bird Counts - 2025 - 2026 The Christmas Bird Count, organized by the National Audubon Society, occurs December 14 to January 5 and is the nation's longest running citizen science bird project. Find a South Dakota count near you and join in the fun. Read More DateCBCDetails 12/20/2025Sioux Falls CBC Contact me if you would like to participate as a field observer or a feeder watcher. Chris Anderson 1/3/2026Canton CBC Please contact me if you would like to participate as a field observer or a feeder watcher. Chris Anderson