feather follicles

I found this recently when I was giving her scritches. There is a hard, little nubbly bump near her eye. It is pinkish grey, hard, protrudes, and irregular shape. There is a little white ring indent on it, which I assume is a follicle?? She's never had something like this before. Can someone...

This is my 3.5 year old goffin cockatoo. I’ve recently noticed that under his feathers (DNA sexed male), it looks like this. He hasn’t plucked before and has millions of toys, a cage mate and is otherwise in good feather condition. It looks like “holes” where a feather is supposed to be...?? He...