My ringneck has a funny habit and i would appreciate if somebody out there can identify it. "She" i think, plays outside of her cage most of the time, she has desroyed a string of bells, and has taken the chain, gathers it between her claws and then bobs like she is bobbing for apples with the bells that she broke off, making a squeaking sound, and it seems to be quite passionate about this bobbing. She will take anything a peg a plastic bottle top anything she can stand on and will go on for 10-15 min doing this, then gets annoyed and flings all the stuff around, chases after it and starts again. Although I love watching her do this, i'm kinda curious what's going through her mind. Any suggestions?