| Publication Type: | Journal Article |
| Year of Publication: | 1967 |
| Authors: | Brockway, BF |
| Journal: | The Wilson Bulletin |
| Volume: | 79 |
| Issue: | 3 |
| Date Published: | 1967 |
| ISBN Number: | 00435643 |
| Keywords: | Melopsittacus, Melopsittacus undulatus, Psittacidae |
| Abstract: | Data on surgically "devocalized" and sham-operated controls indicates that the gonadal activity of male Budgerigars may be stimulated as a result of their performance of vocal display(s) rather than as a result of hearing such behavior by others. This may be the first demonstration of the self-stimulation of an individual's endocrine activity by his performance of a species-typical behavior which involves gonadotrophins and non-parental behavior. Since vocalizations are ethologically regarded as displays, the current thinking about the functions of displays may need expansion. |
| URL: | http://www.jstor.org/stable/4159624 |
| Short Title: | The Wilson Bulletin |
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