
A swan is held by David Barber, The Queen's Swan Marker, during the
annual Swan Upping ceremony, during which young cygnets are counted
and assessed for signs of injury or disease, on the River Thames
near Windsor in Berkshire, southern England, July 18, 2005. The
five-day census of the swan population dates back to the twelfth
century when the Crown claimed ownership of all mute swans. Today,
the Crown retains the right to ownership of all unmarked mute swans
in open water, but the Queen only exercises her ownership on
certain stretches of the River Thames and its surrounding
tributaries. REUTERS/Toby Melville