My Pacific parrotlet is nearly 7 years old. About a month or two ago I noticed a small bald spot on her head. It is only visible when I pet her head and comb over her feathers, but otherwise it is covered by her other head feathers. Nevertheless, it seems to be a bald spot rather than a result of molting. I took her to the vet in the fall for her annual check-up and everything was great.
Could this be stress induced? Or a result of a disease? Or could this be perfectly normal and something I never noticed before? Ultimately, I want to know if I should be worried and to schedule another vet visit in the near future (rather than wait for her annual appointment in the late fall)?