Sonia,
 SM> I have a 10 year old Cockatoo, I got her about seven months ago from a
 SM>    Also she screams evertime I leave the room.  I know the person who
 SM> had her before  spent alot of time with her, the only time I have is
 SM> in the evening. Would it be a good idea to get her a mate?
 Unfortunately, the solution is spending a lot of time with her.
When raising a cockatoo is is a good idea to let them have alone time.
It is also good not to take them out at a routine time so that they
are not looking forward to it
Fran
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