Good call by Gail, it's probably a combination of both. He's been with you long enough and is comfortable enough to start seeing what he can get away with. Then a molt as well, which makes them very itchy and irritated, especially if you touch the pin feathers in the wrong direction because that hurts...
Quakers can be naturally nippy as well, I have a male blue Quaker that I got at 9 weeks old at the beginning of July, and he's a big baby, he has never once, ever, ever bitten me seriously. But he is CONSTANTLY nipping, or maybe chewing is a better description, on my rings, my bracelets, my ears, my hair, my fingers, etc. He doesn't do it hard at all, but it's annoying sometimes. I've spoken to other Quaker owners about this and apparently it's a pretty common trait in them...
This is Lita Ford (yes, I was told he was DNA tested as a female before I brought him home...Wrong!!! He's going to have an identity crisis!!!) He's my little clown, he and the green cheek conure are a handful together! They love each other and Lita is talking up a storm, he pretty much repeats everything I say, and he has the creepiest evil genius laugh I've ever heard...
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