A cross-sectional field study of fall song in Northern Mockingbirds Mimus polyglottos

Autor:	Andrew C. Tovsky, David E. Gammon
Rok vydání:	2021
Předmět:	0106 biological sciences Mimus polyglottos Geography Developmental trajectory biology Mimicry Zoology biology.organism_classification 010603 evolutionary biology 01 natural sciences 010605 ornithology
Zdroj:	Journal of Ornithology. 162:461-468
ISSN:	2193-7206 2193-7192
DOI:	10.1007/s10336-020-01852-y
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::780b58e6a26ed53c3bbd63d9864e7aa1 https://doi.org/10.1007/s10336-020-01852-y Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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