Nature groups have pleaded with swimmers to give wildlife a wide berth after dozens of people swam in a nature pond on Hampstead Heath among nests of baby birds.
Swans and their 12-day-old cygnets were disturbed by hordes of splashing revellers in the north London park on Monday as London reached record 35C temperatures. In one video, a swan was seen poking an unhatched egg with its beak after it fell into the water during the chaos.
