Parrot sales

I went to my 1st parrot sale on sunday. I thought it would be a great place to buy books,toys and whatever else. I knew there would be birds for sale there but i was so shocked when I walked in. There were loads of different kinds of birds there and most of them seemed to be coping well with the situation but there were a lot of grey and a few cockatoos that were absolutly terrified. I know that greys are nervous birds anyway but it was awful to see. They were growling screeching and climbing over eachother to get into a corner. I cant believe breeders would put birds through that just to sell the odd one.
I wont be going to another.
Hilary