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Effects of deafening on song development in American robins and black-headed grosbeaks

Konishi, Masakazu (1965) Effects of deafening on song development in American robins and black-headed grosbeaks. Zeitschrift fur Tierpsychologie, 22 (5). pp. 584-599. ISSN 0044-3573. doi:10.1111/j.1439-0310.1965.tb01509.x.

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Robins that were either raised in acoustic isolation or deafened as young birds developed abnormal syllables in their songs. However, there were distinct differences in syllables between hand-reared intact and deaf birds. The deaf birds produced syllables with higher maximum frequencies, more irregular frequency modulations, and wider frequency ranges than intact birds. They also lacked the typical rhythm of singing and delivering syllables. Song-learning ability was demonstrated with a hand-reared Robin. Hand-raised intact Black-headed Grosbeaks produced more or less normal syllables in their songs, whereas a deaf Grosbeak developed abnormal syllables in addition to some normal ones and pattern of singing. It was concluded that in both species the ability of a bird to hear its own sounds is important in normal song development.

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Additional Information:© 1965 Blackwell Verlag. Received 1. 10. 1964 I am much indebted to Dr. Peter Marler for his advice while this work was in progress and for his valuable criticism of the manuscript. Thanks are also due Dr. William Fish for the recordings of wild grosbeak songs and Dr. Peter Winter for the German summary. This research was supported by a grant to Dr. Marler from the National Science Foundation. The Schering Corporation generously supplied the testosterone.
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Issue or Number:5
Record Number:CaltechAUTHORS:20200814-164420431
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Official Citation:Konishi, M. (1965), Effects of Deafening on Song Development in American Robins and Black‐headed Grosbeaks3. Zeitschrift für Tierpsychologie, 22: 584-599. doi:10.1111/j.1439-0310.1965.tb01509.x
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104969
Deposited By: George Porter
Deposited On:17 Aug 2020 14:13
Last Modified:16 Nov 2021 18:38

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