Falcon contracted to guard stadium pitch

Source: Wikipedia.org

Approximately 120kg of perennial rye seed, an all-year grass cultivar, is planted monthly on the stadium pitch to repair the damage caused by sporting events and concerts. Pigeons cause the most destruction during the ten days before the seeds start to germinate. They consume up to 70% of the planted seed. Direct losses as a result of the pigeon activity amounts to about R80,000 per annum on loss of seed. In addition to this, the money wasted on labour, water, fertiliser and fungicides is substantial.

Stadium management, in accordance with the principles of efficiency that the City of Cape Town adheres to, decided to investigate an environmentally and financially sustainable method to deal with the pigeons.

High concentration of falcons

Scarlet, a Peregrine Falcon and natural enemy of pigeons is expected to have a great impact on pitch management practices. A large portion of a wild Peregrine Falcons' diet consists of pigeon meat. Pigeons are therefore particularly afraid of these falcons. The Cape Peninsula has the highest concentration of Peregrine Falcons in the world.

This is a non-lethal programme. The aim is not to kill but to deter and to change the behaviour of the target species - in this case the presence of the falcon causes pigeons to adopt a new pattern of behaviour - away from the stadium. Unlike other bird-deterrent devices, the target species never becomes habituated to the presence of a live bird of prey.

The Peregrine Falcon flies to a lure (a piece of leather with some wings and a bit of food attached to it) which is swung by the falconer who is positioned in the middle of the pitch. The falconer swings the lure to imitate a bird in flight and it is his job not to let the falcon catch the lure and to keep it flying around the stadium.

Space constraints

The typical style of hunting adopted by Peregrine Falcons is to fly to a great height and wait for an unsuspecting pigeon to pass below. In a stoop (its characteristic high-speed dive used during hunting), Peregrine Falcons have been clocked at speeds in excess of 320km/h. These speeds are not achieved in the stadium as a result of space constraints. The mere presence of the pigeon's greatest enemy encourages them to seek safer feeding grounds.

Scarlet belongs to Hank Chalmers, owner of Eagle Encounters, the largest raptor rehabilitation centre in Southern Africa. She was brought to the centre four years ago with a broken wing and foot after having been hit by a car. Her prospects were dire but after eight months of intense rehabilitation she was able to fly again. She will, however, never fly well enough again to hunt and survive in the wild.