One of the reasons shellfish is bad for parrots is because they have a very high iodine content. Again, a bite of shrimp isn't going to kill your bird if he happens to grab it off your plate, but its not something that should be fed in any large amount.
When I was questioning fish, I meant more along the lines of white fish like talapia or flounder, stuff I eat on a regular basis. I tend to collect all my leftovers after meals and dole it out much to my birdies enjoyment and I would like to be able to include the fish. It IS a good source of clean protein and fish oils are good for feathers, I just don't know to what degree so I haven't, just on the off chance that its bad...
Then again I have always been warned about cheese and my birds LOVE cheese. Pickle, Bryans Hahn's LOVES soda and will practically dive into your glass to get some. We don't allow him to have it, but he does sneak sips of his own and at 16 yrs old, I don't see that's its done him any harm considering he's been doing it since he was a baby. Like most things, its all about volume. Certainly there are foods that birds should never eat, like avocado and fruit pits that contain cyanide. That goes without saying. But denying them a tiny treat of a "not so good" food is mean. Kind of like humans and cheesecake. I love it, but I'm not going to eat a whole one in one sitting, it would give me a heart attack! But I'm not never going to eat it knowing it might.





