My three hens are about 9-10 months old. The woman I got them from said they laid " a green egg and a light brown egg" last year. So Friday I go out and we have two olive green eggs. So exciting! Saturday we get another green, and sunday a pretty light brown. Monday, both a green and a light brown, and today just a light brown. Do you think all three hens are laying? The two larger hens "squat" when pet, the smaller one is just skittish. It would be pretty unusual to have one hen lay two green eggs in one day though right (the first day)? So how do you make sure your hens are laying consistently and that there is nothing wrong with a particular hen? I imagine with a large flock it's even harder to tell who is laying, and who might be having "issues"? Good new is they are finally laying in their box instead of the mud. A wooden egg, combined with the smart "light brown" layer, seems to have convinced them that it's the appropriate location.