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燕子为什么要在屋檐下筑巢

更新时间: 2020-11-13 00:00:00     

因为燕子筑巢主要是为了产卵和哺育幼鸟,屋檐下又宽又平很符合燕子筑巢的要求,并且,猫和较大的鸟都到不了这里,燕子幼鸟就可以安全地在巢里生活。直到长大会飞。

而且还可以避雨

关键词: 燕子 为什么 屋檐 筑巢

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