For 6 years the biologist Joost Tinbergen worked on the foraging theory of starlings. To do this it was necessary to observe one individual starling from dawn to dusk for several seasons. At a biological field station a colony of starlings was founded and by using an observation tower and automatic cameras in the nest boxes, this film was made.
| Director: | Nikolaas Tinbergen |
| Director: | Jan Musch |
| Camera: | Jan Musch |
| Sound: | De Ruiter |
| Editor: | Jan Musch |
| Editor: | Nikolaas Tinbergen |
| Script: | Nikolaas Tinbergen |
| Script: | Jan Musch |
| Producer: | Twisk Filmproducktie Vereniging |
| Production Organisation: | Twisk Filmproducktie Vereniging |
