Hi everyone! This is my 7 year old boy, Edwin. For the last couple of weeks I've noticed he has had the feathers around his eyes looking a bit "dirty". They have access to drinking water they can get their heads into and a small bath in their enclosure. After noticing this I've made a special effort that when they come out for free ranging to put him into the kiddie pool and try and gently help him soak the feathers, assuming that it might be build up of muck from him not washing his head as well as he should. I've also made sure his claws are well trimmed in case it was due to a lack of accuracy while scratching. Does anyone have any advice? Happy to take him to a vet but as he is otherwise healthy, good weight, himself, I wondered if anyone had ideas on what could be causing this and any trusted home remedies I could try? I don't want to stress the old boy out taking him unnecessarily.