Document Detail


Vocal development in budgerigars (Melopsittacus undulatus): contact calls.
MedLine Citation:
PMID:  9286093     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Budgerigars have a complex vocal repertoire, some of which develops through learning. The authors examined the course of vocal development in budgerigars from hatching to about 4 weeks postfledging (approximately 85 days old). Food-begging calls showed changes in duration, peak frequency, bandwidth, and frequency modulation with age. Within a week of fledging, each bird produced a contact call bearing a strong resemblance to a shortened version of its patterned food-begging call. By 4 weeks postfledging, budgerigar contact call repertoires often contained more than one call type, and there was clear evidence of sharing and imitation among the calls of parents, fledglings, and other social companions. Perceptual testing showed that whereas acoustic variation in the structure of developing calls decreased both within and between nestling birds, the discrimination of these calls was easier for adult birds as young birds matured. These results suggest parallels with certain aspects of language development in humans.
Authors:
E F Brittan-Powell; R J Dooling; S M Farabaugh
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of comparative psychology (Washington, D.C. : 1983)     Volume:  111     ISSN:  0735-7036     ISO Abbreviation:  J Comp Psychol     Publication Date:  1997 Sep 
Date Detail:
Created Date:  1997-10-08     Completed Date:  1997-10-08     Revised Date:  2010-12-03    
Medline Journal Info:
Nlm Unique ID:  8309850     Medline TA:  J Comp Psychol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  226-41     Citation Subset:  IM    
Affiliation:
Department of Psychology, University of Maryland College Park 20742-4411, USA.
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MeSH Terms
Descriptor/Qualifier:
Age Factors
Animals
Female
Male
Motivation
Parrots*
Social Environment
Sound Spectrography
Vocalization, Animal*
Grant Support
ID/Acronym/Agency:
DC00198/DC/NIDCD NIH HHS; F31 MH010993-03/MH/NIMH NIH HHS; MH00982/MH/NIMH NIH HHS; MH10993/MH/NIMH NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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