The red-breasted goose that breeds on the Siberian Tundra adopts a clever strategy to protect its young ones from arctic foxes.
It builds its nest near the homes of birds of prey such as the peregrine falcon. The falcon, which has its own chicks to protect, viciously attacks any fox that dares to venture near its nest. Thus the chicks of the red-breasted goose are also saved from attacks.
Amazingly enough, the peregrine falcon does not prey on the geese and their young. In return, the geese emit loud calls to alert the falcon about a lurking predator.