Wisconsin State Bird Robin TeeWisconsin State Bird Robin Tee The American Robin can produce up to three broods in a single season an impressive commitment that keeps Wisconsin yards busy with fledglings from May clear through August. Wisconsin's state bird actually overwinters here in larger numbers than most people realize, hiding in berry laden trees until spring pulls them back to lawns and open ground. Each April, Robins return to Wisconsin's yards and lakeshore edges right as