Current knowledge regarding the vocal behavior in tropical non-passerines is very limited. Here, we employed passive acoustic monitoring to study the vocal activity of the white-tipped dove (Leptotila verreauxi) at three sites over a year in the Brazilian Pantanal. The diel pattern of vocal activity showed a bimodal pattern, with significantly higher vocal activity after sunrise than during the other hours of the day, in agreement with prior studies on this species and other members of Columbidae. The species was vocally active throughout the year, but vocal activity was maximum during May-June and lowest during January-February. Relative air humidity was positively associated with vocal activity, which may be related to the improvement of sound transmission under more humid conditions, but it could also be related to foraging efficiency due to a higher availability of invertebrates on wetter days. Vocal activity was not related to the mean air temperature or daily rainfall. Acoustic monitoring proved to be a useful tool for monitoring this shy forest species, for which a minimum number of three monitoring days was needed to detect a reliable vocal activity rate. Future studies should evaluate its use for monitoring other species of doves and pigeons that are secretive or threatened.

中文翻译：

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新热带白尖鸽子（Leptotila verreauxi）的声音行为的季节变化和Diel

关于热带非雀形目鸟的声音行为的当前知识非常有限。在这里，我们采用了无源声学监测技术来研究白鸽（Leptotila verreauxi）的声音活动。），每年在巴西潘塔纳尔湿地的三个地点进行。声音活动的迪尔模式显示出双峰模式，日出后的声音活动比一天中其他时间明显更高，这与先前对该物种和哥伦比亚其他成员的研究一致。该物种全年有声活动，但在5月至6月的声音活动最大，而在1月至2月的声音活动最低。相对空气湿度与声音活动呈正相关，这可能与在更潮湿的条件下声音传输的改善有关，但由于在潮湿的日子中无脊椎动物的利用率较高，因此也可能与觅食效率有关。人声活动与平均气温或每日降雨量无关。声音监测被证明是监测这种害羞森林物种的有用工具，为此需要最少三天的监测时间来检测可靠的声带活动率。未来的研究应评估其在监测其他有分泌性或威胁性的鸽子和鸽子物种中的用途。