I have four 22wk old hens one is a salmon favorelle, another is a polish puffy head one and then two golden bantams. On saturday Sept 8, I found one very small white egg in the nest box and was super excited! My chickens free range so I followed them around the yard for the rest of the day to see if anyone would lay an egg outside but found nothing! So I put them to bed saturday night and woke up sunday morning to NO EGGS! So I looked around the yard on sunday and once again found nothing! Woke up this morning Sept 10 AND FOUND NO EGGS! Now the first egg was in my eye perfect. It has a nice hard shell and it just had all the right aspects that a chicken egg should have! Could it just be that they days are shorter and are messing up the chickens? It has gotten really cool here in Central MA at night! I even put some golf balls in the nest boxes to help them figure it out but now i am thinking the balls freaked them out because they are no longer going into their coop at night to roost but now prefer the butterfly bush in my gated pool area. Any suggestions!!