Migratory Bird Day in 2021 was held under the theme of Sing, Fly and Glide like birds. Migratory birds are species that migrate twice per year. They travel between habitats on a seasonal basis between places where they enjoy advantages to their survival for part of the year and these migrations can span across many countries and even continents, with birds flying hundreds or thousands of kilometres to reach their destinations. “So, the work of conserving these migratory birds calls for participation and collaboration between the various countries that they fly over and travel to,” the environment ministry said in a Facebook post.