1. A.S. Boyd, R.T. Murphy, C. Gurney, et al., Easten Air Lines, Inc., Lockheed Electra L-188, N5533, Logan International Airport, Boston, Massachusetts, October 4, 1960. Aircraft Accident Report, Civil Aeronautics Board, 1962.
2. Wildlife strikes to civil helicopters in the US, 1990–2011
3. Boeing 767-300, Bird ingestion accident. Chicago Airport. March 15, 2007. Aircraft Accident Report, National Transportation Safety Board, ATL07CA051.
4. Aircraft Accident Report: Crash of Cessna 500, N113SH, Following an In-Flight Collision with Large Birds, Oklahoma City, Oklahoma, March 4, 2008, 2009.