World Migratory Bird Day (WMBD) was initiated in 2006 and is an annual awareness-raising campaign highlighting the need for the protection of migratory birds and their habitats. On the second weekend each May, people around the world take action and organise public events such as bird festivals, education programmes and birdwatching excursions to celebrate World Migratory Bird Day.
About the Day
About Bird Migration
Migratory Birds Photoes - Smithsonian National Zoo