I just wanted to post some pictures of the newest addition to the family; here's Newt, named so due to how awkward yet adorable he behaves. Though I do have a question if something may be wrong with his back or if he's simply standing that way since he stands up a lot straighter than my other two budgies.
I am not an expert, but that's the position Lulu goes in when she is scared, and often a bite comes after. Or it could be that your budgie is trying to hold her balance. You might want to wait for the experts though.
Thank you all for clearing that up. My fiance agrees that Newt is adorable. The little guy was mimicking the lasers from a show the other day and he tends to stand awkwardly but personality wise, he fits well with my other two budgies who are all little dorks. Stormy tries to be smooth only to sometimes faceplant her food yet glanced up as if to say "you saw nothing." While Sherlock likes to make loud noises knowing it'll set off the Chihuahuas and will start up again the moment they quiet down.