I am new to raising chickens & just came home to a dead chicken. I recently (a little over a week ago) added two younger chicks to the coop. They were 3 weeks old at the time and I put them in the coop with 2 others who were 6 weeks old. Everything seemed okay. I was keeping an eye on them all and had noticed that one seemed to be bullied a little but nothing dramatic. Anyway, I came home this evening to a dead bird (the one who was being bullied) she didnt look torn up, she was just lying in the coop dead. Did the other chickens to this? Any ideas what went wrong? What do I do with the dead bird?