Buzzards have moved from rare to commonplace in Norfolk over the last twenty years or so. However common they are, I still thrill to the site of the family groups that soar on the village thermals. This morning (Sunday) we watch as a group of four – presumably tow adults and two young – slowly circle over the Common. We immediately assume, probably wrongly, that the individual which soars at a higher level, conveniently away from the others, is the male. The other three circle one another, calling constantly and occasionally making contact in some form of aerial game of tag. A feint and a roll, one of the pair turning upside down as they touch talons in mid air – some form of pretend exchange of food or some such. All through this their mewing calls drift down from a sky of almost Italianate blue.