On a quiet, still morning a week ago, four conservationists hid, crouched in the grasses and obscured by hawthorn hedges as the morning mist formed in the first light of dawn. After a wait of around an hour, a pair of cranes and their eight week old chick crept steadily from their night-time roost, stealthily and nervously walking out of the thick cover of reeds onto a short drove road. From here they walked much more quickly out into an open field, recently grazed, gleaning early-morning insect morsels from the rush tops.