Broody Bird

My Mum is staying at my brother's house in Marlow, whilst he is on holiday for two weeks. 
She called me this morning to ask about chicken husbandry, as one of the hens was refusing to get off unfertilised eggs. I went over later with 3 of the grandchildren but by this time, the broody hen had moved. Just as well really, as I don't think that she'd have got much peace :-)