And then follows one of nature's great spectaculars. 上演一场蔚然壮观的自然演出

130. So, they wait for others to arrive.
     所以它们等候大部队一同抵达
131. There's safety in numbers.
     数量越多就越安全
132. As daylight fades, the sky fills with a staggering one million starlings.
     天光渐暗 城市上空被数百万只欧椋鸟占据
133. And then follows one of nature's great spectaculars.
     上演一场蔚然壮观的自然演出
134. How, or indeed why, they perform these marvellous aerobatics,
     它们是如何 又是为何成群起舞
135. we still do not fully understand.
     至今我们还无法完全理解
136. Eventually, en masse, they brave the descent
     最终 它们会成群结队地降落

来自《行星地球 第二季 第六集 Planet Earth S02E06 城市》第 133 行