I have a four mature laying hens. They show no signs of of lameness or eating issues. They used to lay everyday. Now my roo has matured and they stopped laying. He really doesn't seem to be rough with them, from what I can tell, but I am not a hen either. My Sultan hen has stopped all together, it's been weeks and she had just started laying. She seems to be his lead hen or girlfriend or most willing or whatever. I have ruled out a hidden nest, as they are confined to a certain area of the yard, and I have searched and watched her very closely. Our RIR has become funny about her eggs as well, not laying one day and a giant one the next. They're all weird about the nesting boxes too, if it doesn't have enough or too much bedding, they won't lay or they'll lay right on the floor of the pen or in the middle of the yard. I have four laying hens and 3 nesting boxes, one is smaller for the smaller hens,and the other two are 14"x16" with perches to jump to. Typically they used them just fine, even saw my largest hen cram herself into the small box. Also I live in central Florida and it's been pretty hot followed by our normal sunami type rains everyday. They have plenty of dry shelter in their pen, and they have deep shade and ice water for the hot. I feed them Layena and oyster shell rocky grit stuff.