I have a umbrella cockatoo..she plucks her feathers and does not eat very well.. try and get your new bird to eat as many different types of seeds and fresh fruit.. I adopted mine about 18 years ago and once their personality pluses or minuses set in it is very hard to change them..honestly the more attention they get the more they want.. so if you commit always commit.. because they do not do well if they need to be rehomed..i have been trying to undo the past mistakes of previous owner to no avail ..but she is loveable and sweet inbetween her screaming demands..my African gray tells her to be quiet and she screams louder..they are so smart.. they know all the tricks and use them//best of luck