I've noticed the postings on egg production dropping off as winter settled in, but my problem is the reverse. Our 5 bantam hens (all about 8 months old) were averaging 4 eggs a day among them for many many weeks in the depths of winter, but now that the temperatures are up and day length increasing, we are down to about an egg every other day -- 2 of them have gone broody, but locking them out of the roost in the daytime seems to have reset one, and the other is at least semi-sociable.
One obvious possibility is that we have a thermostatted heat lamp in the coop, and during serious winter weather they were getting light 24-7 -- so spring actually results in a decrease in light. Another possibility is that I started giving them some scratch grain in addition to pellets at about the time the production dropped off -- that could be coincidence.
If anybody has ideas about what may be going on, or especially about how to get them back into better production, I'd love to hear them.