Have you been keeping track of the Autumnwatch stags on the Scottish island of Rum? Simon King introduced viewers to the stags in last week's programme, but things have progressed somewhat since then. A rut this week between Titus and elderly Percy ended up being a fight to the death. 

This traditional autumn rut occurs as the males try to breed with the females. It has been known to be fatal before, but one of them being killed is still seen as a rare event.

The BBC Autumnwatch website has been keeping track of what's been going on and I expect that the team will be updating us on tonight's programme. If you missed Simon King's introduction to the stags the following clip should help you understand who is who.