Since 2006 every second Saturday in May has been dedicated to the protection of migratory birds and their habitats. Numerous events are organized on this day to help raise awareness that human life is impossible without the bird world.

The most important location for migratory birds in this country is Lake Atanasovsko near Burgas, where 40,000 birds of prey of 30 species and over 180,000 waterbirds of 5 species, flying along the Via Pontica migratory route, cross paths every year. That is why it is so important to preserve Lake Atanasovsko as it is now, without the construction of any facilities or wind blades nearby, or any other threats to the migrating birds.

World Migratory Bird Day is in fact marked twice a year – once on the second Saturday of May and a second time on the second Saturday of October.