I've got 15 hens (about 18 months old) and have not gotten an egg for a month! They were giving me about a dozen eggs a day up until a month and half or two ago and they sloooowly started slowing down. They did start molting so I thought no big deal they'll pick up again in a few weeks. That slow down is gone on to a full blown strike! Yes, it has gotten a little colder and darker with the onset of winter, but they laid all through the winter last year like nothing. I know a lot of peoples opinion is to start culling chickens between and 18 months and 2 years, but to stop laying at exactly 18 months and not pick up again? This is ridiculous. I usually sell all of my excess eggs, and the worst part of all is that I had to buy grocery stores last week! Any suggestions as to how I could convince these ladies to start laying again?