20210904 朱红蜂鸟静立在枝头 必应壁纸

朱红蜂鸟 朱红蜂鸟静立在枝头 你知道在美国，9月的第一个星期六是国家蜂鸟节吗?这是多么棒的一只鸟啊。朱红蜂鸟，比如这张照片中的朱红蜂鸟蜂鸟，对健康的生态系统至关重要。因为它们从开花植物中吸取花蜜，所以朱红蜂鸟是比大黄蜂更好的授粉者。

它们的适应性也很强。当北美太平洋海岸的许多其他蜂鸟随着秋冬季节的临近而迁移到温暖的地区时，朱红蜂鸟可以通过增加脂肪储备，或者在必要时减慢新陈代谢来应对寒冷，从而在较冷的温度下生存下来。

如果你不知道蜂鸟国歌的歌词，很简单:跟着哼唱就行了。

原文:

Did you know that in the US, the first Saturday in September is National Hummingbird Day? You do now! And what a terrific bird to celebrate. Hummingbirds, such as the Anna's hummingbird in this photo, are crucial to healthy ecosystems. Because they drink nectar from flowering plants, Anna's hummingbirds are even better pollinators than bumblebees.

They're also highly adaptable. While many other hummingbirds on the Pacific Coast of North America migrate to warmer areas as fall and winter approach, Anna's hummingbird can survive the cooler temps by bulking up its fat stores or, if necessary, slowing down its metabolism to cope with the cold.If you don't know the words to the hummingbird national anthem, it's easy: Just hum along.

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