Hello! I bought a lot of new pullets last year and this year. Last year despite having around 35 hens at any given time, I was only getting 4 to 14 eggs per day. I realized that a lot of my hens are pretty old. So I decided to try to figure out which ones are spent. It's been my experience that when you move a hen she sometimes doesn't lay an egg the next day. I have a little area set up that I'm putting the hens in one at a time, the ones who I think are the ones I've owned the longest, and I'm going to give them a few days to see if they are still laying. How many days do you think I need to give them for a good trial? I figure the first and second day they might be freaked out, but then if they don't lay eggs on the 3rd and 4th day, is that long enough to know? I've been keeping chickens for 17 years now and I've never attempted to figure out for sure which ones are still laying and which ones aren't. I know I have a few out there that are at least 7 years old, maybe 8.