Description: ContributorsForewordPrefaceNote on TaxonomyIntroduction1 Learning and the Ontogeny of Sound Signals in Birds I. Introduction II. Vocal Development That Is Independent of Audition III. World Survey of Vocal Learning in Birds IV. What Is Actually Learned? V. Timing of Vocal Learning VI. Concluding Remarks References2 Subsong and Plastic Song: Their Role in the Vocal Learning Process I. Introduction II. Subsong of the Song Sparrow III. Subsong and Plastic Song in the Chaffinch IV. Song Ontogeny in the Swamp Sparrow V. When Do the Characteristics of Crystallized Song First Appear? VI. Learning to Sing from Memory VII. The Role of Improvisation VIII. The Role of Invention IX. Conclusions on the Functional Significance of Subsong and Plastic Song References3 Avian Vocal Mimicry: Its Function and Evolution I. Introduction II. Some Conceptual Issues III. A Survey of Mimics IV. Possible Functions of Vocal Mimicry V. The Evolution of Vocal Mimicry VI. Conclusion References4 The Ecological and Social Significance of Duetting I. Introduction II. What Is a Duet? III. What Are Duetting Species Like? IV. Functional Significance of Duetting V. Multiple Functions of Duets and Duet Structure VI. Conclusions References5 Song Repertoires: Problems in Their Definition and Use I. Introduction II. Repertoire Size III. Organization and Use of Song-Type Repertoires IV. Concluding Remarks References6 Microgeographic and Macrogeographic Variation in Acquired Vocalizations of Birds I. Introduction II. Microgeographic Variation III. Macrogeographic Variation IV. Discussion References7 Genetic Population Structure and Vocal Dialects in Zonotrichia (Emberizidae) I. Introduction II. Population Genetic Consequences of Nonrandom Mating III. F Statistics and Population Models IV. Hypothesis Testing in Song Dialects Research V. The Search for Structure Within Dialect Populations VI. Dialects and Area Effects References8 Individual Recognition by Sound in Birds I. Introduction II. Methods III. Recognition Between Mates IV. Recognition Between Parents and Young V. Recognition of Neighbors VI. General Discussion References9 Conceptual Issues in the Study of Communication I. Introduction II. Description III. Motivation and Reference IV. Function and Consequence V. Endowment and Development VI. Evolutionary Derivation VII. Animal Communication and Human Language VIII. Summary References10 Appendix: A World Survey of Evidence for Vocal Learning in Birds Text ReferencesTaxonomic IndexSubject IndexContents of Volume 1

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