Last week one of our hens started sitting on the nest. I followed some advice given on various websites, including sitting the poor girl in cold water, but she kept returning to her nest.
After a week of sitting, I figured she could at least sit on some eggs, so I got Tom to bring home some eggs from his parents' house from two hens that live with 'Zorro' a black Andalusian rooster.
With some luck we might have some chicks in about 3 weeks time.