Annual Census Of The Swan Population Takes Place On The Thames

STAINES, ENGLAND - JULY 14: The Sovereign's Swan Marker, David Barber, puts a cygnet in the shade of a tree after being caught during the annual Swan Upping census on July 14, 2014 on the River Thames, South West London. The historic Swan Upping ceremony dates back to the 12th century, to when the Crown claimed ownership of all Mute Swans and they were eaten at banquets and feasts. The Sovereign's Swan Marker, David Barber, counts the number of young cygnets on the river each year and ensures that the swan population is maintained. The swans and young cygnets are also assessed for any signs of injury or disease. (Photo by Dan Kitwood/Getty Images)