Bird arrivals, departures a priority at new airport in Africa
Thousands of swallows gather on the wet land at Mount Moreland of the coast of the Indian Ocean. The birds arrive in small number but then they increase in quantity. They rise in numbers during the summer in Africa to bread. The flight path of the swallows in the way of the aircraft that arrive and depart at the new airport. Several conservation organizations are arguing that the birds can not be killed. Environmentalist observed bird patterns to help solve take off and landing flights. The airport installed a radar system to keep tabs on the coming and going of the birds. The radar system will alert the airport when massive flocks of the birds are arriving and therefore it changes the flight take offs and landings to keep the birds safe.
http://blogs.nationalgeographic.com/blogs/news/chiefeditor/2010/03/african-airport-slots-bird-flights.html