I posted a message May 23 about my hens not laying. I'm doing an experiment, which has been going on less than a week and here are the results.
I have barred rocks, buffs and Betty (mix bantam and buff I think). They are in a fenced area. However, in the morning I turn them loose in a very large, wood fenced back yard and they stay all day.
First, I've hung a 25 watt bulb in their house, right now on 24/7. Second, I don't feed them in the morning, only when I put them up in the late afternoon and then I give them about 90% laying pellets and 10% cracked corn with oyster shell.
Some were staying on the roost in their house past noon every day. After about 4 days, I'm getting three new eggs each day. These hens are about 2 years old. They get treats and are basically spoiled - that could be the problem.
I live in North Mississippi and it has already been hitting the 90's. This past winter, I got an egg from just about all every day, a time when they should have stopped laying. I'm very aggrevated with the girls, but I'll keep this experiement up another couple of weeks. So far, it seems to be working - slowly.