I watch a female blackbird busily flicking over leaves in the flower border, in search of a juicy morsel to take back to chittering fledglings in her nearby nest. My gaze wanders to the horizon of a sweeping Wolds hillside, striped with green hues of ripening crops. My eyes fix skyward towards a kestrel - once known as the stand or stannel hawk in Yorkshire - hovering purposefully above; tail feathers fanned and executing minute movements to hold its position, working in tandem with fast direct wingbeats. The kestrel's head is motionless, eyes down scanning the ground for tell-tale signs of a vole in the grass.
Whilst focussed on the scene, I caught the noise behind me, at first a soft hum but moving closer and louder, until the buzz of an insects wings was all encompassing. I turned to the noise filled and there was another flying acrobat, no less amazing than the kestrel but many times smaller.