I have no idea what breed she is. I will take a picture later if it helps. She is 6, almost 7 months old. I live in Eastern Europe and the temperature is very high during summers (35C+/95F+) and very low during winters (-10C/14F). We give them feed that helps with laying, vitamins and everything the vet recommended. It's where I get the supplies. We also feed them pasta, vegetables, some fruits from time to time and other table scraps that are not spicy. They live in their enclosure and they do forage. Within 3 days after I moved them in, the ground looked like surface of the moon. She isn't showing any signs of sickness. She eats, drinks and is energic. And I'm 100% confident that she layed the egg. She didn't eat when it was feeding time, about 1 hour before the egg showed up. She only sat in the straw, making that "an egg is coming" sound. I waited for 30 mins and then left, came an hour later to check and the egg was on the ground, in the middle of the yard. One thing I noticed, she didn't make that distinct sound after she layed the egg. She just layed it and continued with her chicken business.