I got freedom ranger broilers this year as an experiment to see if I liked them. I butchered 3 at 13 weeks and had noticed one seemed to breath loudly and have a bit of trouble, but when I butchered his lungs looked great so I didn't worry. I just butchered another at 16 weeks and she was having the same breathing issue. Her lungs looked scary. They had what looked like blood clots all through them and they were pale in color. I've included a picture. Any idea what this is? She was sounding kind of wheezy when she breathed.