Who writes these things?! I've don't remember ever reading one that was any good and this one is another example! Leaving aside the fact that it says it's OK to give them meat, fish, etc [!}, it also says that they should be let out 'a couple of times a day' - HA! Try that and see how much and how loud a parrot can scream!
http://www.getwhatever.com/bird-pet-sho ... t-parrots/