1. Fatalities and destroyed civil aircraft due to bird strikes 2002 to 2004;Thorpe,2005
2. Crash of Cessna 500, N113SH, Following an In-Flight Collision with Large Birds, Oklahoma City, Oklahoma, March 4, 2008;National Transportation Safety Board,2009
3. The costs of bird strikes to commercial aviation;Allan,2001
4. Directive 2009/147/EC of the European Parliament and of the Council of 30 November 2009 on the Conservation of Wild Birds;European Union,2009
5. Wildlife Strikes to Civilian Aircrafts in the United States 1990–2014;U.S. Department of Transportation Federal Aviation Administration,2015