La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	A cross-sectional field study of fall song in Northern Mockingbirds Mimus polyglottos (2021)
Auteurs :	David E. Gammon, Auteur ; Andrew C. Tovsky, Auteur
Type de document :	Article
Dans :	Journal of Ornithology (162(2) April, 2021)
Article en page(s) :	461-468
Langues:	Anglais
Résumé :	Studies of the acoustic structure of song in young birds have proven valuable at helping us understand song development, but nearly all existing studies have been performed on non-mimicking songbirds. We conducted a cross-sectional field study of song development in a prominent vocal mimic, the northern mockingbird, by comparing the fall songs of hatch-year vs. after-hatch-year birds. Although sample sizes of hatch-year birds were small, the data suggest a developmental trajectory in which both song stereotypy and the frequency of vocal mimicry increase with age. Thus, the acoustic structure of fall song may provide a reliable indicator of a bird’s age and performance.
En ligne :	https://doi.org/10.1007/s10336-020-01852-y

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