I have a 10 week old hen who was found this morning on the ground being pecked by the roo. she was not moving around that much, she is not lethargic at this time. her crop was fairly hard but malliable (sp?) . I have seperated her from the flock and given her her own food and water. She is also doing this thing with her beak that resembles a fish out of water, just a slow opening it wide and closing it. Suggestions or treatments?