feathers around beak turning dark
Three weeks ago I came home to find a pile of feathers in the bottom of my cockatiels cage. She continued to chew her feathers for the next several days so I made a vet app and ordered pluck no more.
The vet decided she probably had an infection and put her on metronidazole with out running any test. She has been on it 8 days and the feathers around her beak are turning dark. She has mostly quit chewing her feathers but I'm not sure if its the antibiotic or the pluck no more I'm putting in her water.
I made another appointment with a new vet but I don't know if he will be any better. Could the antibiotics have caused her feathers to turn dark or maybe its from the pluck no more. Do you have any suggestions of what this could be so that maybe I could ask the vet to run some test? I'm willing to pay for test but they don't seem to know what to do.