Hi,I hope someone can help! I keep a mixed flock of brahmas, faverolles and orpingtons. Recently both my orpingtons have stopped laying a single egg! They are let out at 8am and as its now summer in the UK they don't go to bed until 9pm! They are fed good quality layers pellets and mixed corn in the afternoon,I also mix in poultry spice/vitamins. They have been wormed and are otherwise in lovely clean condition. Any ideas? They are just over 12 months old and since coming in to lay have never missed a single day laying until now-so odd they have both stopped!?