The youngster refuses to back down. 年轻的骇鸟拒绝退让

125. But he's not alone.
     但它并不孤单
126. A younger male wants this prime spot.
     一只年轻的雄性也想要这个绝佳位置
127. The older one can't ignore the threat.
     年长的骇鸟不能无视威胁
128. The youngster refuses to back down.
     年轻的骇鸟拒绝退让
129. He needs a territory of his own.
     它需要自己的领地
130. The two begin a ritual display.
     两只鸟开始了一场仪式性的展示
131. Assessing the other's strength...
     评估对方的力量

来自《我们星球上的生命 第一季 第一集 Life on Our Planet S01E01 生命法则》第 128 行