In June/July of 2015 most of my flock suddenly stopped laying. At this time it was no where close to the normal Fall time drop in Egg Production I'm used to. The girls were at the following ages back in June 2015: 4 Leghorns (15 mos old) 1 Bantam OE Game Hen (15 mos old) 2 Easter Eggers (11 mos old) 2 Welsummers (11 mos old) 1 Barred Rock (11 mos old) I checked them for parasites with my local farm vet and nothing. I wormed them twice. This was also before the days started getting too short. I don't use artificial lighting. I feed them decent food (Layena Plus Omega 3) and I add in 2# of crushed oyster shells to each 40# bag of feed. I was giving them a poultry vitamin/electrolyte combo in their water through the end of the year at least. They do not get excessive treats. Their stool appears to be firm and not runny. They haven't had anything new in their environment with regard to stress they are isolated from scary sounds and have plenty of room to hide from other bird predators. Overall they really do seem as happy as they can be. So in review: > Negative for parasites > Good nutrition > Overall health appears fine > No loose stool > No known environmental stresses > No leg mites > A couple cases of Bumble-food that is nearly healed up > They scratch and play in their 50' by 30' by 20' tall outdoor enclosure. > Food and Water are available inside and outside of their coop. > Lastly they are invisible to those who live in my neighborhood due to my 6" tall privacy fence. Now that the days are getting longer I am starting to see 1 or 2 eggs from my leghorns. But still nothing from the others. Here are their current ages as of this post. 4 Brown Leghorns (24 mos old) 1 Bantam OE Game Hen (24 mos old) 2 Easter Eggers (18 mos old) 2 Welsummers (18 mos old) 1 Barred Rock (18 mos old) Any Ideas? Thank You Poultry Gods!