Considering adopting a rescue cockatiel

Been thinking about adopting a rescue instead of buying from a breeder. Any experiences with rescue birds in Ontario? What should I expect in terms of behavioral challenges? Which rescue organizations do you recommend?

Hang in there! It gets better. My cockatiel went through this too.

I actually disagree with this. In my experience with my cockatiel, the opposite was true. But I know every bird is different.