Ah, I guess what you are talking about. I found a few minor bugs/weirdnesses like the egg count going into negatives. When collecting eggs without coming back to the page that shows the chicken age and says if eggs are ready for collection or not (by just revisiting the next one), chickens don't become hens! When I finally came back to the page with chicken's age, I saw something like 115.2/28.0! Then I refreshed the page a few times and concluded that I need to visit it for the hens' lifecycle to work properly, as a new hen appeared after each refresh and chicken's age decreased by 28... And egg number decreasing by one, even below zero! So, you may fix this if you so wish to, but there is nothing more to investigate.