作者: Matthew D. Beckett , Gary Ritchison
DOI: 10.1676/09-204.1
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摘要: Abstract We studied the effects of breeding stage and behavioral context on singing behavior male Indigo Buntings (Passerina cyanea; n = 15) during 2004 season in Madison County, Kentucky, USA, to better understand how males with a single-song repertoire vary characteristics their song convey different information. Playback experiments were conducted 2005 territories focal (n 14) further examine possible effect male-male interactions behavior. analyzed 10,919 songs 15 consisting series figures that usually paired (i.e., phrases). Mean duration was 2.30 ± 0.13 (SE) sec (range 1.44–3.40 sec) varying by number phrases each song. Singing rates varied significantly (P < 0.0001) among stages highest prior pairing, suggesting has role mate attraction. also differed 0.013) du...