The current global population of black swans is estimated to be up to 500,000 individuals.
A mature Black Swan measures between 110 and 142 cm (43-56 in) in length and weighs 3.7–9 kg (8.1-20 lbs). Its wing span is between 1.6 and 2 metres (5.3-6.5 ft). Relative to their size, black swans have longer necks View Full →
The number of eggs in a swan clutch ranges from three to eight.
Both male and female swans incubate the eggs. The male takes the day shift, while the female incubates the clutch at night.
The word swan is derived from Old English swan, akin to the German Schwan and Dutch zwaan and Swedish svan, in turn derived from Indo-European root *swen (to sound, to sing), whence Latin derives sonus (sound)