Territorial Swan Goes After Man Swimming

WARMINSTER, ENGLAND – NOVEMBER 30: A swan drinks from a hole in the frozen lake in Warminster Lake Pleasure Grounds, as the country wakes up to sub-zero temperatures, on November 30, 2016 in Wiltshire, England. Sennybridge in Wales recorded the lowest temperature of the season overnight, with the Met Office reporting a low of -9.4C. (Photo by Matt Cardy/Getty Images)