I had three, 8 1/2 month old pullets that were laying very well. One silkie, one polish/silkie mix, and one EE. About a month ago, my silkie was taken from the coop by something. After that my polish/silkie mix slowed to a complete stop with her laying. My EE went layed for about a week after that before stopping, too. They haven't layed since. Right now they are almost 10 months old. What could have caused this sudden stop? I was thinking shock from the predator attack but how come my EE kept laying a week after that before stopping? They are not molting and are perfectly healthy so I can't think of anything that would have made them stop.