That’s good one day my Runners decided to lay right in the walk way of the coop and the shavings didn’t even look messed with until I stepped on 2 eggs crack. Someone did a good job of hiding them.
Their getting close to beginning to lose fertility usually around 10 days an beyond fertility is getting compromised. If no one is sitting you might want to let them start over an start marking the eggs with a marker you can put date or just number 1 an up that way you can keep track of fresh and old.I only have 1 hen and one drake. I only just found them this morning and there where 6 in the nest and i collected one 2 days ago so maybe 7 days if she has been laying everyday.