Swans
An illness which led to the death of dozens of the Queen's swansin Windsor has been confirmed as bird flu.
Swans are birds of the family Anatidae within the genus Cygnus. ... Swans usually mate for life,
As for legend and folklore, swans only sing one beautiful song in its life-just before it dies.
Swans can fly up to 620 miles in 12 hours at speeds of around 55 miles per hour.
The male is known as a cob and the female as a pen. They appear identical but the male is larger, with a slightly longer head and body and wider wingspan.
The black knob at the base of the male's bill swells during the breeding season and becomes noticeably larger than the females
