What is going on with my hen?

[Titania207]

Done research and it turns out all though they don’t go broody often, when the do they are very hard to break.

Thanks for looking into that - not surprising it is not often as this is the first time I have seen one of my hens act so strangely (I have 3 barred rocks and 3 austrolorps). Sort of not surprising they are difficult to break as I can see Laverne (said hen) from my window even now pacing angrily around the run...