Thor's breathing seems a little labored. She may be about to lay. I am worried. A month ago my Elsa became ill and died. I thought Elsa may have been egg bound because it seemed as if there was something wrong inside. She was to one the foremost avian vets. He checked and she was not egg bound. He prescribed Doxy. Elsa had just laid two eggs. After I got home I found them. Later Elsa started breathing heavy and died. I see Thor's tail down and wings a bit lowered the same way as Elsa's so I was just wondering if it was a symptom. I had thought Elsa died because something went wrong inside when she laid. Now I am questioning what happened and hoping Thor does not meet a similar fate. How much should apple cider vinneger be diluted?