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| Göth, A.; Vogel, U.; Curio, E.. |
| The acoustic communication of the Polynesian megapode Megapodius pritchardii G.R. Gray, 1864, was studied and analysed for the first time. Adults pair up monogamously and the male produces so called whistles while guarding its mate. The three-element song of the male together with the females`s “coo” call are combined to produce a duet. Depending on the social context, either sex may initiate the duet. Both male song and duet serve mainly in territorial defence. Neighbouring pairs often answer by producing the same sound in response to any one of three vocalizations (song, duet, whistle). “Clucks” are additional sounds with a social function uttered by both sexes. When handled, adults and chicks utter “distress calls”; in chicks, these are the only sounds... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Polynesian megapode; Megapodius pritchardii; Vocalization; Repertoire; Duet; Signal function; 42.83. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/219419 |
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| Anjos,Luiz dos; Vielliard,Jacques M. E.. |
| The vocal repertoire of the Azure Jay Cyanocorax caeruleus (Vieillot, 1818) is approached from a quali-quantitative point of view. The qualitative analysis was carried out both in the field and in captivity: the quantitative analysis was made only in captivity. Social acoustic communication in the Azure Jay is achieved through the use of two types of call: basic and intermediate calls. Fourteen basic calls are identified and presented through sonograms: the sotto voce song (courtship call) is related only to courtship and the social call is interpreted as the song in the Azure Jay. The intermediate calls are recombinations of the basic calls uttered during an alteration in motivation level. Examples of them are presented through sonograms of vocalizations... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aves; Corvidae; Cyanocorax caeruleus; Repertoire; Behavior. |
| Ano: 1993 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751993000400011 |
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