I am anew bird owner of a white capped pionus . He is preety good behvior wise . I was wondering what a few thing mean sometimes he like puffs him self up what does this mean is this aggression and also sometimes he opens his beak really big like he is going to scream but nothing comes out he is a very quite bird very quite little chirps and squeks. one more question why does he sometimes stand one 1 foot.

                                                              Thank You

As far as opening his mouth realy wide...he is yawning! yup thats all that is! I think its so cute when they yawn

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Darcel