It's spring, the best time of year for a marten to find food. 春天,是松貂找食的最佳时节

81. These are as inedible as those in the Taiga so animals are still scarce,
    针叶依然如北极针叶林那样难吃 所以动物仍然稀少
82. but they are present.
    还是有意外的惊喜
83. A pine marten.
    松貂
84. It's spring, the best time of year for a marten to find food.
    春天,是松貂找食的最佳时节
85. Bird's eggs are a seasonal snack and for a short time, there's plenty of them
    鸟卵是季节性的美餐 虽然数量众多,只是不能长时间享受
86. Sometimes perhaps, too many.
    有时候可能是…太多了
87. But to live here permanently, the marten needs a more reliable food source.
    要在这里常住,松貂就需要稳定的食物来源

来自《行星地球 第一季 第十集 Planet Earth S01E10 季节森林》第 84 行