Poor baby, even if it's just feathers, that must hurt. I know in humans pain can cause increased heart rate and elevated blood pressure, perhaps this is her elevated breathing cause?? you need better info and advice than I can give you. @casportpony @Texas Kiki, any ideas or other members who may be of help?This is the smaller chicken with the breathing issue and the mass feather loss I can’t seem to upload a video here sadly but I have the video of her breathing too I’ll try to get w youtube to link it later or something.