Jürgen Friedrich Mahrt (1882-1940) left behind a large collection of taxidermied birds and butterflies, as well as countless photographs, documenting the wildlife habitats of his time, many of which no longer exist today. His great-granddaughter has the collections analyzed by experts.
| Directing | Sönje Storm | Director |
| Production | Sönje Storm | Producer |
| Camera | Alexander Gheorghiu | Director of Photography |
| Editing | Halina Daugird | Editor |
| Sound | Dominik Eulberg | Music |
| Sound | Bertram Denzel | Music |
| Sound | Henry Reyels | Music |
| Sound | Roman Pogorzelski | Sound |
| Writing | Sönje Storm | Writer |