Kestrel

"Common kestrel falco tinnunculus" by Andreas Trepte, www.photo-natur.de. Licensed under CC BY-SA 2.5 via Commons

So here is our second commonest bird of prey - the Common Kestrel, Falco tinnunculus. It is the one seen hovering over motorway verges and other suitable habitats. It descends in steps before finally dropping onto its prey, usually a field vole or mouse.
There is a nest box used annually on the side of the Nuffield Hospital in Woodingdean and I often see one of the adults hunting in the fields around the racecourse on my way to work.