Swan Uppers hold cygnets after tagging them during the annual swan upping along the River Thames, west of London, Buckinghamshire, Britain, 16 July 2025. Swan Upping, an annual tradition of counting swans on the River Thames, plays an important role in the conservation of the mute swans, during which the King's Swan Warden collects data, assessing the health of young cygnets and examining them for any injuries. (Photo by Andy Rain/EPA)
