Thanks to its varied landscape, the Duvenstedter Brook is one of the most species-rich and diverse nature reserves in Hamburg. Almost all year round, the majestic cranes can be observed here. In the local brook, chemist Bernhard Weßling knows every single one of the approximately two dozen pairs of cranes. Unbelievable but true: he recognizes the animals by their voice. The report accompanies him to his cranes. He can’t talk to them, but Weßling translates the sounds they use to communicate with each other.
The fact that the animals have been breeding successfully here again in recent years – and even spending the winter – is thanks to the tireless commitment of the “Crane Watch”. This is a team of volunteers and NABU employees who look after both the animals and the environment in the Brook. The reportage accompanies the team from spring on and shows which dangers for the cranes, their young and the fragile environment have to be overcome so that the people of Hamburg can enjoy them now and in the future.