https://blog.wongcw.com/2018/12/12/%e7%82%ba%e4%ba%86%e8%a8%8e%e9%9b%8c%e6%80%a7%e9%b3%a5%e7%9a%84%e6%ad%a1%e5%bf%83%e9%9b%84%e6%80%a7%e9%b3%a5%e9%a1%9e%e4%bb%98%e5%87%ba%e4%ba%86%e5%93%aa%e4%ba%9b%e5%8a%aa%e5%8a%9b%ef%bc%9f/
為了討雌性鳥的歡心雄性鳥類付出了哪些努力?