I came home from work and noticed that my 11 week old EE (Hawk)wasn't herself. She was just standing there with her head down. Normally runs toward me when I come in the coop. I tried feeding her and she to one bite of cracked corn tried to get her to drink and her head just went limp into the water. So I placed her by the food and water and went into the house. Once my birds went to roost I went and shut their door and went to see if she was ok. I found her underneath her sisters dead. Can any one give me an idea of what happened