Literature
  • Laybourne 1974
  • Collision between a vulture and an aircraft at an altitude of 37,000 feet. Wilson Bulletin 86: 461-462.
  • Laybourne, Dove 1994
  • Preparation of birdstrike remains for identification. 22nd meeting Bird Strike Committee Europe (Vienna). Working Paper 93: 529-534.
  • Laybourne 1992
  • Basic technique for preparation of down for examination with the scanning electron microscope. Auk 109: 195-197.
  • Laybourne 1994
  • Feather in amber is earliest New World fossil of Picidae. Wilson Bulletin 106: 18-25.
  • Leshem 1992
  • Predicting regularity of bird migration in global bottleneck areas, on a daily, seasonal and yearly scale, and its implementation in Israel air force and civillian flight. 21th Meeting Bird Strike Committee Europe (Jerusalem). pp. 243-258.
  • Lucas, Stettenheim 1972
  • Avian Anatomy. Integument: Part I. United States Department of Agriculture, Washington D.C., 340 pp.