Both male and female swans incubate the eggs. The male takes the day shift, while the female incubates the clutch at night.
The current global population of black swans is estimated to be up to 500,000 individuals.
The number of eggs in a swan clutch ranges from three to eight.
Black swans occur over large parts of Australia, with estimates of their range varying from 1 to 10 million square kilometers.
The Black Swan is protected under the Australian National Parks and Wildlife Act, 1974. It is evaluated as Least Concern on the IUCN Red List of Threatened Species.