Social Learning of Vocal Patterns and Modes of their Application in Grey Parrots (Psittacus erithacus)§

Authors

  • Prof. Dr. Dietmar Todt

    Corresponding author
    1. Biologisches Institut I (Zoologie) der Universität Freiburg i. Br
      Lehrstuhl für Verhaltensforschung, Freie Universität Berlin, D-l Berlin 41 (West), Harderslebener Straße 9.
    Search for more papers by this author

  • Dedicated to Prof. Otto Koehler (†).

  • Based on a paper presented at the XVIth Intern. Orn. Congr. (Canberra; 1974).

  • §

    Supported by grants of the SFB 70, Freiburg i. Br.

Lehrstuhl für Verhaltensforschung, Freie Universität Berlin, D-l Berlin 41 (West), Harderslebener Straße 9.

Abstract

We have developed a method which allowed us to teach Grey Parrots special vocal patterns with a good success. The birds uttered these in antiphonal duets (Fig. 1, Table 1). The duets were performed only between the parrot and its cooperative partner. By experimental auditory stimulation we investigated the conditions of the vocal communication (Fig. 2, Fig. 3). Furthermore we found, that the performance of antiphonal duets obstructed the extension of the vocal repertoire with patterns which could not be learned from the birds' social partners (Fig. 4).

Ancillary