A while back my young female budgie (I'm guessing she's around 1.5 yrs old) started to develop a crusty cere. At first, I just assumed it was because she was maturing and going into breeding season. But then the peeling turned into larger bumps. I don't have an avian vet around me but I was considering taking her to the normal vet anyway since its better than nothing but I figured I would get some second opinions first.
I attached some photos, I'm not sure how well you can see the dips.