Does anyone know if it's okay to combine these two medications? I'm not sure if my bird has coccidosis or worms. Here are the details. Five-month-old American Gamefowl pullet. Symptoms include lethargy, listlessness, standing off by herself, but no visible signs of respiratory distress, no discharge, no blood in feces, no paralysis or other symptoms of Marek's. We had another one go through the same thing, and she slowly began to waste away and became weaker and weaker until she died.