For the North American musk oxen, this is rutting season.

对北美麝牛来说，这偶的季节。

But we can be much more specific than this even, because we're clearly looking at these animals in the autumn, at the time of rutting and migration to winter pastures.

我还可以更进一步地具体描绘，然我观察到的，秋天时向冬季牧地进行大迁移的驯鹿。

They had grabbed each other by the shoulders and were carrying out a Staring Contest, the horns on their helmets locked together like a couple of rutting stags.

住彼此的肩膀，在进行一场凝视比赛，头盔上的角紧紧地锁在一起，就像两只公鹿。