World Migratory Bird Day provides an opportunity to raise awareness of the importance of conservation of migratory birds and their habitats. The anniversary, initiated by the United Nations, is celebrated twice a year (on the second Saturday in May and in October) to highlight the cyclical nature of the long journeys made by migratory birds along the flyways linking the continents. Migratory birds are those that periodically migrate in search of food, a better climate or ideal breeding conditions. World Migratory Bird Day was established in 2006 by the World Conservation Organisation UNEP, the United Nations Environment Programme and aims to raise awareness among institutions and the public on the importance of protecting migratory birds and their natural habitats.