The Sulphur-crested Cockatoos in the Royal Botanical Gardens of Sydney, Australia are delightful birds that even in the wild tolerate human interaction and provide entertainment to visitors. These large white parrots seem to enjoy showing off their acrobatic prowess. This particular bird seemed intent on dangling from the metal chain that surrounded a protected area of the gardens, sometimes using a single claw or its beak or, as in this shot, three points of contact. Native to eastern Australia, it has been declared an agricultural pest in some portions of Western Australia.