It is spring in northern Mars, but no birds are singing.
火星的北半球正值春季，但我们听不到鸟儿歌唱。
In previous years, all of the singing (spring) individuals that I have recorded have been Sakhalin Leaf Warbler.
在过去几年，所有我记录到的有鸣唱的个体(春天)都是库页岛柳莺。
And all birds are singing loud, there, the first white butterfly in the sun goes flitting to spring!
鸟儿们全都在高声唱歌，第一只蝴蝶一闪而过飞向春天的怀抱！
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