The Black SwanCygnus atratus is a species of swan, which breeds mainly in the southeast and southwest regions of Australia. The species was hunted to extinction in New Zealand, but later reintroduced. Within Australia they are nomadic, with erratic migration patterns dependent upon climatic conditions. Black Swans are large birds with mostly black plumage and red bills. They are monogamous breeders that share incubation duties and cygnet rearing between the sexes. It has a red bill with a white tip and when at rest its plumage is all black. When in flight it shows white wings. Black Swans can be found singly, or in loose companies numbering into the hundreds or even thousands.They are popular birds in zoological gardens and bird collections, and escapees are sometimes seen outside their natural range. Pin the 1000 series hotos were taken at the Santa Barbara Zoo. Those in the 2000 series were photographed at the Mokola Island Wildlife Preserve, Rotorua Laka, Rotorua.