Until the past week, we have allowed our chickens to mostly free range in our fenced yard all day. We just had a bout of 2 chickens being broody at the same time and no eggs from our reliable layer. So, For the past week we have been keeping the chickens in the coop/enclosed pen/open run area to try to get them back to laying in the coop nest box regularly. today, we let them out and one of the girls ran behind a stone wall and disappeared. We have been trying to find her nest in that area, as she disappears in that back section of the yard regularly; but just located it today. Under an overhanging rock under the stone wall. She was sitting on 8 eggs. One might be from today, but the others are at least 1 week old and probably way older. They are really dirty too. Anyway . . . she is now in broody jail. We have had variable temps (20's to 40's) and wondered if we should even try to see if the eggs are good. My DH thinks we should just chuck em. We don't have a roo, so no chance they are fertilized. Advice??