Hello! I am in New Zealand and am new to chickens. We got 2 Rhode Island reds back in march and they were laying 6 eggs a week each for months. Unfortunately we went away for a few days and came back home to no eggs and no eggs laid since, it's been 4 weeks without eggs now! I've checked for mites and lice, no sign, they are eating and cursing around still but one is staying in her box for most of the day. How do I get an egg out of them or is it time to eat up?