- The two begin a ritual display.
两只鸟开始了一场仪式性的展示 - Assessing the other's strength...
评估对方的力量 - ...while showing off their own.
同时炫耀自己的力量 - Their coordinated moves
它们协调一致的动作 - as formal as a dance.
像舞蹈一般正式 - Who will be the first to back down?
谁会率先退却? - Or attack?
或者率先出击?