One of the sick swans on Hampstead Heath’s pond no 1 Photo by India Bourke There is much about Britain in 2022 that has been bleak. Political chaos and economic pain have drained energy and hope. But as during the height of the pandemic, nature has once again been a source of solace for many. And for me it has nested in particular on Hampstead Heath in north London, where I’ve watched a pair of swans raise their seven cygnets to downy adolescence. Tumultuous days have been steadied in enjoyment of their flirtatious courting of human admirers, and anxious thoughts…