Our bantam cochin was fine this morning acting broody in her nest box. This after noon dd noticed that she was lethargic and acting funny. She didn't want to get up and go free range with the others so we let her be. This evening she was under the heat lamp eyes closed labored breathing and looking practically dead. When I picked her up to bring her int he house her head dropped and liquid/water a lot of it poured from her mouth. I think she is not going to make it. What is wrong with her!