Join Michigan Audubon in a celebration of World Migratory Bird Day and Capital City Bird Sanctuary Open House! World Migratory Bird Day is celebrated worldwide; the 2019 WMBD theme is “Protect Birds: Be the Solution to Plastic Pollution!” Learn about this problem, and about what you can do at home and in your community to help birds. Family-friendly activities and a variety of guided bird and nature walks will be held throughout the morning.