American Robin Seet Calls: Aerial Alarm or a Contact Call?
American Robin Seet Calls: Aerial Alarm or a Contact Call?
复制标题
美国罗宾西特呼叫：空中警报还是联系呼叫？
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
P. Eason
中科院分区：
文献类型：
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作者：
E. N. Vanderhoff;P. Eason
摘要关于美洲知更鸟（Turdus migratorius）的鸣叫的文献尚不清楚，因为轶事报道表明它是一种空中警报。一个更近的，全面的帐户表明，这很可能是一个联系电话。我们通过观察和回放实验研究了seet呼叫的含义，这两个实验都支持呼叫的空中警报功能。知更鸟只会对空中的捕食者发出叫声，许多知更鸟会凝视天空，这种行为以前从未报道过。知更鸟在听到警报后进行三种反捕食行为，凝视天空，警觉和扫描，与听到控制相比，时间明显更长。美国知更鸟，像许多其他鸟类一样，可能进化出这种叫声，以避免被空中捕食者发现，并警告同类。
Abstract The literature regarding the seet call of the American Robin (Turdus migratorius) is unclear as anecdotal accounts indicate it is an aerial alarm. A more recent, comprehensive account indicates it is most likely a contact call. We examined the meaning of seet calls through observations and a playback experiment, both of which support the aerial alarm function of the call. Robins only gave seet calls to aerial predators and many engaged in skygazing, a behavior previously unreported for robins. Robins engaged in three anti-predator behaviors, skygazing, alert, and scanning for significantly more time after hearing an alarm compared to hearing a control. American Robins, like many other birds, probably evolved this call to avoid detection by aerial predators and to warn conspecifics.