Ok, day 23 and only one little pip on day 19 from the 6 Langshan eggs I have shared between my broody buff orp and barred rock. I know I should give up! Fertile eggs from a reputable brooder so can only assume Mr Postman was very rough and/or the mayhem in the chook house with egg and nest swapping was just too much for the eggs. Really must try harder next time to give the broody her own space but these two were having no of it and kept on going back to the nest box. Poor things - over 3 weeks of dedicated sitting and nothing to show for it