The Mute Swan is not mute but is less vocal than other swans. A large, white swan, it is distinguishable by its red/orange bill with a black knob on top.
Native to Eurasia, it is one of the heaviest flying birds with females at some 15kg; the American Trumpeter swan is larger,
but the Mute swan holds the record for being heaviest at 23kg.
The dambuster
Mute swan head
The bath
Shouldn't have eaten that vindaloo last night
Comparison of swan's heads: click for link to other swans
Whooper
(yellow extends to nostril)
Bewick's
(smaller, less yellow, more black)
Tundra
(North American) can have more yellow on beak or can have all black beak
like the Trumpeter
Coscoroba
(South American) - more like a
goose