1. Signature systems and kin recognition;Beecher;Am. Zool.,1982
2. Kin recognition in birds;Beecher;Behav. Genet.,1988
3. Beecher, M. D., Loesche, P., Stoddard, P. K. & Medvin, M. B. In press. Individual recognition by voice in swallows: signal or perceptual adaptation? In: Comparative Psychology of Audition: Perceiving Complex Sounds (Ed. by S. H. Hulse & R. J. Dooling), Hillsdale, New Jersey: Erlbaum.
4. Acoustic adaptations for parent-offspring recognition in swallows;Beecher;Exp. Biol.,1986