My hens are about two and a half yrs old. Their yolks and whites started out as thick and hard to break, now the whites are real runny and thin and the yolks break as soon as they touch the pan. We live in Florida so the heat gets up to the mid 80s now but was running 98 and up a month ago. I did read in the older thread that scratch will do this, and I do give them scratch. I will cut out the scratch for a while and see if that helps, but I guess my other worry is are they getting too old and what is too old for them. I have 9, two little bantams one bared rock one RIR and 5 speckled sussex and I have named them all and I just could imagine doing away with them this soon. Does anybody have any feed back. I really would appreciate it.