I know Common Buzzards hover a bit sometimes but i saw two today along the M5 about ten miles apart,the first when i saw it from a distance, i was 100% sure was a Kestral until i got closer and realised how big it was,the second i was more expecting but they really were hovering,Kestral style,i wonder whether it was the weather conditions,a certain prey or something else,it was just unusual,they were just above the modest sized tree-line within a few metres from the motorway,any thoughts.