The offspring of some bird species are still learning to fly after they recently flew out of the nest, while others are shortly after being independent, undertake long journey to the warm areas.For ornithologists, after the end of the nesting season, an extremely interesting part of the year begins. Rare species in unusually high numbers, exceptional observations, new sites, all bring with them the phenomenon of bird migration, whose autumn stage is just beginning.

For migrating birds is important the country without barriers. For example, under the LIFE Energy project, energy companies in the area of the most important migratory routes in the east and west of Slovakia install flight diverters that make power lines visible and birds can fly over the lines without injury.