Spectacular stop-motion and slow-mo camerawork, but the writing is really bad in places. It is terribly patriotic in tone, and has several instances of inanely anthropomorphising language. As if hedgehogs cared about outdated human mores on female sexuality, or if birds "flown thousand of miles, risking \[their\] life to be part of our British summer". Just no, please. Bad enough when laypeople think like this, nature documentaries should really avoid this human-centered point of view.