i have a flock of around 30 chickens (10 egg laying age) i had been getting 9 eggs per day but suddenly the number started dropping rapidly now ive been lucky to get one egg a day, and most of the time its broken. i thought perhaps they were laying out in the field somewhere but never found anything, however yesterday i saw the problem. the girls are eating their eggs they were all flocked round the nest boxes munching away. i dont know who starts it but they all seem to join in (even the 10 week olds) how can i stop this behaviour????