Bird Hazards to Aircraft
Departure vs. Arrival
7.9 Nautical Miles
1.5 Nautical Miles
Approaching planes spend the most time in bird zones (Below 3000 ft.)
Most bird strikes happen outside the range of airport countermeasures.
9,931 Bird strikes
9,000 Bird strikes
1,816 Bird strikes
18,883 Bird strikes
8,532 Bird strikes
The largest number of strikes occur in the approach phase of flight.
Wildlife strikes to civil aircraft in the United States 1990-2005
Flying in the Bird Zone
28,806 Bird Strikes 1,023 (3.6%) causing substantial damage
7,469 Bird Strikes 445 (6%) causing substantial damage
2,686 Bird Strikes 85 (3.2%) causing substantial damage
Only 5% of reported strikes with civil aircraft causing substantial damage above 3,500 ft. AGL. Dolbeer’s Rule: Above 500 ft. AGL, bird strikes decline by 32% every 1000 ft.
Cleary, E.C., R.A. Dolbeer, and S.E. Wright, 2003. Wildlife strikes to civil aircraft in the United States, 1990-2002.