Vocalizations of White Carneaux pigeons during experiments on schedule-induced aggression.

Two types of vocalizations of White Carneaux pigeons were identified in experiments on schedule-induced aggression and were given pictorial representation in sound spectrograms. Characteristics of these vocalizations are examined in the context of previous descriptions of vocalizations of several varieties of pigeons during aggressive and sexual encounters in naturalistic settings. These earlier descriptions portrayed vocalizations with mnemonic phrases and the symbolds of dictionary pronunciationmdata are presented that indicate that the analysis of social encounters between pigeons during schedule-induced aggression may be aided by employing these and other vocalizations as dependent variables.