We just walked out to check on our hens this afternoon and noticed drops of blood inside the hen house. A quick check of our hens and we realized the blood was coming from my son's 6 month old black silkie. She was sitting quietly with the other hens, eyes closed, she has dried blood in her mouth and beak and also dried on her breast feathers. She was fine this morning when we let them out into the hen's fenced yard and I saw her eating then. I brought her in the house with the air conditioning on and put her in a box in a quiet corner. She still refuses water but is sitting with her head up and seems a quite a bit more alert. She never quarrels with the other two hens she lives with, they are all pretty good friends. But, she is the only bantam in the coop. Is it possible they injured her? I was worried perhaps she got overheated, but today is quite a bit cooler than the past few weeks ( in the 80's) and their coop & house is always shaded. I'm not sure how I should treat her. Is their any known disease that has symptoms that include coughing up blood? Or is it simply an injury? Either way, I'm not sure what to do to help her. She is our favorite, most gentle hen. Any suggestions or ideas would be greatly appreciated! Thank you!