1. Wildlife Hazard Management Handbook;Airports Council International,2013
2. The costs of birdstrikes and birdstrike prevention;Allan,2002
3. A protocol for birdstrike risk assessment at airports;Allan,2000
4. A heuristic risk assessment technique for birdstrike management at airports;Allan;Risk Anal.,2006
5. CAP 772 Wildlife Hazard Management at Aerodromes;Civil Aviation Authority,2014