Inscrutable all-seeing dragonfly overhead

Hamsterley Forest, Weardale Their visual sensitivity challenges us and their ability to track small fast objects is unparalleled

Much of Hamsterley forest lay in deep shadow and the scent of conifer resin hung in the still air between the spruces. No one had passed this way this morning; there were intact spiders' webs stretched across the path high above Spurleswood beck.

And there we found a female golden-ringed dragonfly, Cordulegaster boltonii, clinging to rushes, still grounded by the lingering chill of the night. It's the largest and, with its jet-black and yellow markings, the most startling, dragonfly species in the north Pennines.