I have 18 hens, 17 of them are all about the same age - give or take a week or two - all around 26 weeks. We get 9-11 eggs a day right now. One of them is from our one older hen, I know this because she lays blue eggs. I also know for sure our cornish is laying because her eggs are smaller. The rest are all brown layers, so it would be very hard to tell who was laying - but, I'm inclined to think with them all being the same age and all good laying breeds (isa browns and red stars mostly, an odd barred rock or jersey giant, but mostly heavy layers) that I would be getting more eggs on a daily basis? I know they are not vending machines, etc...but it just seems logical to me?