...but it's a wasted journey 但如果雄鸟来得太晚 以至于找不到雌鸟

187. whiskered terns travel thousands of kilometers
     须浮鸥会飞行数千公里
188. to breed in these rich waters.
     来到这片富饶的水域繁殖
189. It's the perfect place to raise a family...
     这里是建立家庭的绝佳场所
190. ...but it's a wasted journey
     但如果雄鸟来得太晚 以至于找不到雌鸟
191. if a male arrives too late to find a female.
     那就会白跑一趟
192. All he can do is watch the success of others.
     只能看着别人幸福美满
193. With his rival gone...
     对手走了

来自《我们星球上的生命 第一季 第八集 Life on Our Planet S01E08 冰与火的世纪》第 190 行