In the evening, they come back to the warmth of the city 夜晚 它们在郊外摄食后

122. In a single winter's day,
     冬季的每一天
123. ten tonnes of its droppings rain down on the city.
     都有十吨粪便雨降临这座城市
124. Starlings.
     欧椋鸟
125. In the evening, they come back to the warmth of the city
     夜晚 它们在郊外摄食后
126. after feeding in the neighbouring countryside.
     返回温暖的城市
127. They must return to their roosting trees.
     它们必须返回栖息地
128. But the first to do so are at the highest risk
     但第一个回来的最有可能

来自《行星地球 第二季 第六集 Planet Earth S02E06 城市》第 125 行