The Silver Swan is a life-size musical automaton built in 1773 from silver and glass, now housed in the
Bowes Museum in County Durham.
The clockwork
swan rests on a "stream" of glass rods in which little silver fishes swim. When activated the swan preens itself then appears to catch one of the fish before swallowing it in a display which lasts around 40 seconds.
The mechanism, built by
John Joseph Merlin (who also brought us the
rollerskate) includes "
six camshafts, a quadrant-and-pinion, chains running up the slender neck and a pair of spring-operated lazy tongs." While this 235 year old swan is still
eating fish daily, its real life counterparts prefer underwater plants and cereal crops.