1. A Study of Bird Song;Armstrong,1963
2. Notes on song structure in the Townsend's solitaire;Borror;Wilson Bull.,1969
3. Kinetic aspects of singing;Bouhuys;J. appl. Physiol.,1966
4. Respiratory and heart rates of birds at rest;Calder;Condor,1968
5. Evaporative cooling and respiratory alkalosis in the pigeon;Calder,1966