One of my month-old Turkens has developed an odd symptom. When she moves around a lot or is touched on her abdomen, her abdomen makes a sound like pop rocks, a fire, or like I said, a sizzling chicken. The sounds lasts for a couple of seconds or sometimes up to a minute. I have had a chick with a ruptured air sac and she did not sound like this. Does anyone know what could be affecting her? Or is this normal?