Hi, I just noticed one of my quails has a huge red sore on her bottom, see photo. I only have 3 quails, in a run 3m x 2m so they have plenty of space, shaded areas and undergrowth to hide in. She is acting normally as far as I can see, she is quieter a nervous bird, about 4months old. I can’t tell which are her poops. I think I should hold her in warm water for 10-15 mins to try and clean her, maybe with some apple cider vinegar in? Any suggestions gratefully received. Thank you.