 ICARUS research program, planned for 2015 on the International Space Station, should enable the tracking of more and smaller birds – and that with a thousand times greater precision.
In any case, the narrow flight corridors of the cuckoos are of great importance to the survival of the animals. Destruction of the habitats in the narrowly circumscribed intermediate stops, flight obstacles or intensive hunting can be a threat to the existence of entire populations. The protection of these corridors is similarly important to the preservation of the resting and breeding grounds of such prominent species as coastal birds, geese and cranes.