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Open Access Publications from the University of California

Perception of Species-specific Vocalizations by Isolate-reared Buegerigars (Melopsittacus undulatus)

  • Author(s): Dooling, Robert J
  • Park, Thomas J
  • Brown, Susan D
  • Okanoya, Kazuo
  • et al.
Creative Commons 'BY' version 4.0 license

Budgerigars were trained with operant conditioning procedures to discriminate among sets of calls from several species in a Same-Different task. Response latencies from this task were analyzed in several ways including multidimensional scaling (MDS) and cluster analysis. The pattern of response latencies from budgerigars reared in a large group of conspecifics was compared to that of budgerigars reared in acoustic and social isolation. Results show that budgerigars with previous experience with species-specific vocalizations and isolate-reared birds who had never heard such sounds can both discriminate among the categories of species-specific vocal signals. But, results from MDS and cluster analysis also show that rearing budgerigars in isolation has subtle effects on the perception of these categories of vocal signals.



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