Yellow Tailed Black Cockatoos are from my own backyard - 5 acres of bush 20 kms. west of Ballarat. We have quite a few Hakea bushes on our property and at certain times of the year they stop to partake of the seeds - we awaken to a "crunch, crunch, crunch" outside the bedroom window and it's lovely to lay there and listen to the sounds of their feeding. It helps that there are pine plantations in the area (much easier to eat than Hakeas) and I think they stop at our place on trips between them just for a change of diet....