Black swans also produce a softer cooing sound as well as a whistle when defending a nest. Breeding season varies depending on the location but usually occurs in winter months. Nesting can take place anytime from February to September. Nests can reach five feet across and are constructed from twigs and reeds in the center of a lake or near banks.. Australian Black Swans (Cynus atratus) are one of three swan species native to the Southern Hemisphere, and the only known black colored swan species on Earth. These large waterfowl can weigh up to 20 lbs (9kg), with males being the larger sex of the species.
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Swan-Black empowers organizations with the right data, in the right context, to drive operational efficiency We drive value for our customers to bring sustainable, scalable, and profitable business outcomes through our exclusive, high-engagement customer success program.. The Black Swan has dark body plumage with white feather tips on its wings. The bill is orange-red with a white band near the tip and the eyes are bright red. Size 0.2 to 1.3 m long (0.22 to 1.5 ft) Weight Up to 9 kg (20 lbs.) Diet