At the beginning of May, the last migratory birds from the south have arrived and the males in particular are making themselves loudly known. They demarcate territories and look for a partner for the current breeding season. The variety of bird calls at this time of year is more than confusing, who is who - and why? Fortunately, some bird species have a distinctive and unmistakable song, others are more difficult to pick out from the chorus of voices. We will try to identify at least some of the most common birds by their song and memorize them through repetition. Perhaps we will also be able to hear and see some of the feathered treasures of the national park.