I had 5 hens and then a cock. The cock was getting so cocky all hens stopped laying after he was introduced. All the hens combs went very pale. I got rid of the cock but still the hens day aged combs were pale and no eggs. 2 hens died within days of each other. Now 3 hens and 2) still have very pale combs and no eggs. One had recovered her nice red comb and is laying daily. What can I do for the 2 not laying. Hens have their coop and they sleep in their Iglu style coop nightly. Being fed on wheat, sunflower seed and purchased in chicken pellets. Plus they get treats of left over cat food mashed into the seeds as well as fresh veg and fruit. At a loss. Do I get rid of the 2 non layers and replace?