Dazed and Confused

I met this little guy a couple of weeks ago. I began the rubbish run and spotted what I thought was a large mushroom underneath the ficus in the park (in my defense here, we have been growing some extraordinarily large mushroom like fungus in the parks of late), then it moved. I parked the ride on vehicle and wandered over to look at the, what ever it was. Turns out to be a bird. Im ok at recognizing bird species, I know he isnt a sulphur crested cockatoo, but as to what sort of cockatoo he is, I couldnt say. He had obviously had a bit of a rough night. When I walked up to him, he would plod towards me and then seem to register that there was a human there, so would turn around and plod away from me. He showed no signs of attack (Which Im quite grateful, as there are quite a few cats and dogs about the area) and had obviously spent the night on the ground. He could open his wings but was very much unable to fly as he seemed to have absolutely no strength was shivering. I wrapped him up in the bit of hessian and stuck him in a bucket. I had the intention of taking him to the rangers, but nobody was in when I banged on the door at 7am. So the cocky sat in the bucket at the bunker til I finished the rubbish run, when I got back, he seemed to had perked up a bit and had managed to unwrap himself from the hessian as was happy sitting in the corner of the bucket. Also by this time, the vet was open so we bundled into the ute and dropped him off. The nearby vet has an arrangement with a local bird sanctuary and they are a drop off point, so the sanctuary can pick them up, rehabilitate and release them back into the wild. So I filled out a form to say what was wrong with him, and where and when I found him. I'll be optomistic and hope that he will be able to be nursed back to health, rehabilitated and released back into the wild so I can get narky at him for destroying the plants in the park, like all the other birds in his flock :)