Thanks. I am already doing that and Checking several ad sites at least once per day but usually 2-3 times.

You are right, that is how it would work with UK. rescues too. They own the bird, I would care for it if approved.
The only thing I don't like is should anything happen to me then the bird would have to go back to rescue. I have 4 plans in place already in the event I am unable to care for the pets I already have- just in case the 1st one falls through so it means I would have to change my plans for Ollie. As it stands at the Moment all my pets would all be living together if My partner and I both died or got severely ill but that would have to change if we got a rescue. They would have to guarantee that Ollie and potential new bird would stay together if they get on as well as I hope. The person who is safe housing the maroon is calling me tonight anyway.
In other news we are going to see a pineapple green cheek on Saturday, she sounds a perfect match for our family. Her owners can no longer care for her as she's fallen severely ill.
**update** we have a home check on Sunday from the rescue.