I'm new to this site as well as the chicken world in general so please bear with me... This is Rosie. She is 8 weeks old. She has been in the outside coop with 4 other chicks for about 3 weeks now. Well, she isn't quite acting like herself today. She has her head all tucked in and her feathers are all ruffled. She seems a little sleepy and doesnt have much motivation either. Her stools seem to be normal. We have removed her from her flock and put her under a heat lamp since this ohoto has been taken. Any ideas on what might be wrong with her?