Vocal repertoire and group-specific signature in the Smooth-billed Ani, Crotophaga ani Linnaeus, 1758 (Cuculiformes, Aves)
نویسندگان
چکیده
Vocal plasticity reflects the ability of animals to vary vocalizations according context (vocal repertoire) as well develop vocal convergence group signature) in interaction members social groups. This feature has been largely reported for oscine, psittacine and trochilid birds, but little investigated birds that present innate vocalization. The smooth-billed ani (Crotophaga ani) is a bird lives groups between two twenty individuals, which presents Here we analyzed repertoire this species during activities, further existence signature. study was conducted Southeast Brazil May 2017 April 2018. Two anis were followed, Guararema Charqueada groups, their recorded contextualized performed behavior. its composition, acoustic variables. parameters maximum peak frequency, fundamental minimum frequency duration analyzed. To verify signature group, tested whether there variation monitored We ten constituted Smooth-billed Ani, five (“Ahnee”, “Whine”, “Pre-flight”, “Flight” “Vigil”) issued by exclusive group. There significant differences “Vigil” suggesting these sounds. established Ani diverse repertoire, with variations also occurring same population. Moreover, found evidence used cohesion, defense territory maintenance.
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ژورنال
عنوان ژورنال: Papéis Avulsos de Zoologia
سال: 2021
ISSN: ['1807-0205', '0031-1049']
DOI: https://doi.org/10.11606/1807-0205/2021.61.59