After having my hens living in their house for 18 months or so, they have decided it's not to their liking! They spend their nights perched on top of it.
I spoke to a friend who keeps hens and he thought it might be red mite that was bothering them. Now I always use Diatom and whilst I have had red mite in the past, there is no sign of any now. I did however, just to make sure, completely clean their house, and then used a mite killer, left it to dry for hours, put some fresh bedding in, and guess what? They only go in to lay their eggs and then spend the nights on top of the hen house again!
They are quite safe on top - I am not too concerned with predators, but then I don't like it that they don't like their house! Any ideas?