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首页> 外文期刊>The wilson journal of ornithology >Prothonotary Warblers (Protonotaria citrea) Break Their Beaks During Attacks on Wooden Conspecific Decoys
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Prothonotary Warblers (Protonotaria citrea) Break Their Beaks During Attacks on Wooden Conspecific Decoys

机译：原住民鸣鸟（Protonotaria citrea）在攻击木制同种诱饵时折断喙

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Researchers often use wooden conspecific decoys paired with playback of audio recordings to capture individuals of territorial avian species. Agonistic responses elicited by these decoys can be violent at times; however to our knowledge, there have been no previously recorded instances of physical attacks on a decoy causing injury. In April 2014, we witnessed two cases of male Prothonotary Warblers (Protonotaria citrea) breaking their beaks while attacking a conspecific wooden decoy used during target-netting. Upon recapture 6-8 weeks after initial breakage, beak damage had healed and both males' mass was virtually unchanged (＜1% change from their mass at initial capture). We also observed no detrimental effects of the broken beaks on within-season survival, mate attraction, or territory maintenance. Despite the lack of effect of the breakage on the birds, we suggest the use of softer materials in decoys. In addition to the development of safer practices when target-netting, our observations draw attention to the potential dangers of territorial disputes in passerines as well as the importance of territorial signaling to avoid serious injury. Received 31 January 2015. Accepted 8 July 2015.
机译：研究人员通常使用木制的特定诱饵和音频回放来捕获领土禽类的个体。这些诱饵诱使的激动反应有时会很激烈。但是据我们所知，以前没有记录到诱饵诱饵对身体造成物理攻击的情况。 2014年4月，我们目睹了两例雄性原鼻鸣鸟（Protonotaria citrea）在攻击目标网时使用的同种木制诱饵时打破了喙。初次断裂后6-8周重新捕获时，喙的损害已恢复，并且两个雄性的体重几乎没有变化（与初次捕获时的质量相比变化了<1％）。我们还没有观察到断喙对季节内生存，伴侣吸引或区域维持的有害影响。尽管折断对鸟类没有影响，我们还是建议在诱饵中使用较软的材料。除了在建立目标网络时开发更安全的做法外，我们的观察还提请注意在雀形目中领土争端的潜在危险以及为避免严重伤害而发出领土信号的重要性。 2015年1月31日收到。2015年7月8日接受。

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