Long story short... we bought our first chickens this spring. 10 Easter eggers. 5- 3 months old and 5- 5 months old. Shortly after that we bought those first 10 we bought 4 more hens that were each 1 year old. They are one golden comet, barred rock and two black sexlink. About another month we bought 5 year old black sex links. The 4 hens that we bought 2nd started laying right away and with the exception of one never stopped. Within a few weeks the 5 older Easter eggers started laying. At one time I was getting 5 green and 3-4 brown eggs a day. Once I even got 2 a day out of one of the sex links. I have them in what I feel is a very nice coop. It is the old milk house on or farm. We have classic nesting boxes out of my parents old chicken house. There are 5 on the top row and 5 on the bottom row. The coop is very well ventilated and has 2 purches. They have a large run that they have access to anytime which is even partially shaded. I feel like they are living in luxury. I would like to turn them out to free range but wanted them all established and laying well. I feed them a laying pellet mix I get from tractor supply. I mix in it oyster shell and grit. They have a large waterer that is cleaned daily. I currently have 18 hens, 14 of which are old enough to be laying and have laid at one time. Slowly but surely they have almost all stopped laying!!! I should be getting up to 14 a day and today I only got 3!!! I haven't gotten a green egg for weeks... currently one of the black sex links have gone broody... she has pulled out all the feathers on her belly and lays in an empty next. I use to have a marble egg in the box for training but took it out when I noticed she was always on it. I know I should do something about her but seperating her from the others will be quite a task because I am not set up for it. She isn't mean to us at all when we get her out but I do notice he pecking the others when she is out. I don't know why the other aren't laying?! I have been patient, it is getting worse. They all seem healthy and happy... I feed them lots of fresh veggie scraps from my garden and none of them act or look sick. When I merged the flocks there were never any fights or disruptions. I thought it was the heat wave for awhile but it has cooled off and still it gets worse. Does anyone have any ideas what could be causing this? Any help or advice?