Abstract

The age-related variability of the frequency and structural–temporal parameters of the advertising song of Ficedula hypoleuca males in natural habitats and the urban environment were analysed. In the natural habitats, the range of male song frequencies, the maximal frequency, the number of figures, and the length of the song decreased from the third year of life. Similar age-related song changes in urban birds are observed earlier, from the second year of life. Urban birds have shown that the higher minimum song frequency increases with age, adapting the song to noise pollution.

中文翻译：

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自然和城市环境中花斑捕蝇器（Ficedula hypoleuca）歌曲的年龄相关变异性

摘要

分析了在自然栖息地和城市环境中Ficedula hypoleuca雄性广告歌曲的频率和结构 - 时间参数的年龄相关变异性。在自然栖息地，雄性歌曲频率的范围、最大频率、数字的数量和歌曲的长度从生命的第三年开始减少。从生命的第二年开始，在更早的时候观察到城市鸟类中类似的与年龄相关的歌曲变化。城市鸟类已经表明，较高的最低鸣叫频率随着年龄的增长而增加，使歌曲适应噪音污染。