Yeah, this just cropped up in the last day or two. She was on top of my laptop (a neutral place) and started "ramping up" with excitement and then asked me for noogies (all this is fairly normal). Normally when birds get all excited I am super cautious, but Macu has done this many times before and been fine.
I went to give her her scritches and she struck. At first a hard quick release then when I went to pull away, long and crushing bite (yay blood!). It was just me in the room, she is not a big fan of Sean loving on her as much as I do, but she tolerates him. After the bite, she went directly to her cage with cover on and me telling her "Bad Parrot" in a low voice so that she knew it was a different tonality. I let her sulk there for an hour, and went back to check on her - the minute I got even close to the cage her hackles went up, all the while her calling to me in her sweet voice like she wanted out....weird huh? When Sean came over, she acted normal to him, didn't raise her hackles when he went near the cage, but to play it safe we waited a bit before a second attempt to see if she was out of her mood.

Her diet's the same, still getting plenty light and exercize etc. I tried the second time to get her to step up on a stick to see if she would accept that and she freaked out and ran to the back of the cage, then flew out of the cage and promptly hit the window with her face. If felt so bad that I couldn't just let her hop up on my hand, so toweled her and put her back for the rest of the evening.

To say the least, even though I know better it kinda hurt my feelings she was being such a Grouchy Groucherton.
I just noticed her eye skin is a little more coral pink colored - any sign that she's reaching maturity?