Davis, R.A. and R.E. Harris. 1995. Studies of numbers and movements of gulls with respect to potential bird hazards to aircraft safety associated with a proposed landfill near the Collingwood Municipal Airport. Unpublished report TA 2102 prepared for the Town of Collinwood by LGL Limited, King City, Ontario. 46 pages.
Hild, J. 1978. Biophenological Observation and Information Service in GAF, A Help for Birdstrike Forecast. Proceedings of the Bird Strike Committee Europe. BSCE13-WP20. Bern, Switzerland. 8 pages.
Merritt, R.L. and R.L. Dogan. 1992. Bird Strikes to U.S. Air Force Aircraft 1987-1991. Proceedings of the International Bird Strike Committee, Jerusalem, Israel IBSC21/WP42:393-401.
Klaver, I. A. 1990. Influence of Bird-Shooting on the Relation: Numbers Present / Incidents. Proceedings of the International Bird Strike Committee, Helsinki, Finland IBSC20/WP4. 13 pages.
Dahl, H. 1984. The Bird Strike Situation and Its Ecological Background in the Copenhagen Airport. Pages 287-290. In: M.J. Harrison, S.A Gauthreaux, Jr. and L.A. Abron-Robinson (editors). Proceedings of the Wildlife Hazards to Aircraft Conference and Training Workshop. United States Department of Transportation, Federal Aviation Administration, Washington D.C. Dahl_1984.pdf
Shah, P.S., J.R. Mason and L. Clark. 1992. Avian chemical repellency: A structure-activity approach and implications. Pages 291-296 In: R.L. Doty and D. Muller-Schwartze (editors). Chemical Signals in Vertebrates VI. Plenum Press, New York, New York.
