I got two "18 month old" hens from a local man in late July. I put the age in quotations because I still have doubts about their age. While in quarantine neither bird laid an egg. No biggie, stress will do that. After no signs of illness they were put in with the flock of 6. A few more weeks and only two weird eggs. One felt like sandpaper and the other was huge and shell less. Getting odd, but still no stress. Finally one of them got into her groove. She lays beautiful jumbo size blue eggs for a couple days and then takes a day off. I get 4 or 5 a week from her. That brings me to the other one. She lays 1 or 2 eggs a week. Every one has some sort of defect. Weird shape, bullseye stains, many with no shell, odd textures, etc. She has been with me for almost 2 months and I have yet to see a normal egg from her. Should I still have hope or does it seem unlikely that she'll ever lay properly? Also worth mentioning, she never goes into the coop at night willingly and she only lays in the nest box about 1/3 of the time.