I'm very puzzled why they are laying very few eggs. I have 6 ISA Browns enclosed(about 140sq ft) with roof with deep litter method, they move around actively, give them 18% protein feeds, fresh water, no parasite, not molting. I have another 4 black hens next to ISA brown and they are free ranged. I release ISA to free range around 1pm, but sometimes later. Black hens give me 4 eggs every day. ISA give me 1 or 2, sometimes long odd shaped eggs showing some stress. They usually stay near the door as if they are waiting for me to open. Do you think ISAs are stressed out looking at black hens going around freely?