Hi. I'm new to the site. I recently acquired 4 cotunix quails. 3 females and one male. I've had them of almost 2 wks, but have gotten only 3 eggs from them. One w/o shell. I was giving them chicken crumble for layers, but after reading some, I changed the food to while game bird with 30% protein. I am also supplementing with oyster shel crushed and mealworms. They have 14 hs of light. No predators. Planty of space. Any suggestions. Thank you for any advise.