World Migratory Bird Day (WMBD) is an annual global campaign organized by the United Nations Environment Programme (UNEP) to raise awareness of the need to protect migratory birds and their habitats. The day is celebrated biannually, in May and October, to coincide with the migration seasons in different regions of the world. It highlights the significance of conserving migratory birds, which travel vast distances across continents, and the ecosystems they depend on for survival.

Migratory birds play a crucial role in maintaining the balance of ecosystems, but they face numerous threats, including habitat loss, climate change, pollution, and illegal hunting. World Migratory Bird Day emphasizes the importance of international cooperation to protect these birds throughout their migratory routes, spanning multiple countries and ecosystems.

Each year, the day is marked by educational events, birdwatching activities, and conservation campaigns that focus on a specific theme related to migratory bird protection, such as preventing habitat degradation or reducing light pollution. These activities encourage people to take action to safeguard the natural environments that support migratory birds and to promote the sustainable use of resources.

World Migratory Bird Day also calls attention to the importance of biodiversity and the interconnectedness of ecosystems, reminding us that the conservation of migratory birds is essential for the health of the planet.