How can bird hazard be avoided?
Airports are responsible for bird control and should provide adequate wildlife control measures. Some major airports are provided with an ornithological department that has ravens or similar birds trained to drive away other birds from the airport premises. 

However, this is not a 100% efficient solution and flight crews have procedures that must follow if birds are reported.

If large birds or flocks of birds are reported or observed near the runway, the flight crew should consider:


Delaying the takeoff or landing when fuel permits. Advise the tower and wait for airport action before continuing.
Take off or land on another runway that is free of bird activity, if available.


To prevent or reduce the consequences of a bird strike, the flight crew should:


Discuss bird strikes during takeoff and approach briefings when operating at airports with known or suspected bird activity.
Be extremely vigilant if birds are reported on final approach. If birds are expected on final approach, plan additional landing distance to account for the possibility of no thrust reverser use if a bird strike occurs.




References: http://www.birdstrike.org
http://www.boeing.com/commercial/aeromagazine/articles/2011_q3/4/