Sand Martins And Swallows

I visited Marazion late this afternoon until sunset , Marazion was full  of Sand Martin and Swallows feeding voraciously. I find this species very difficult to capture in flight, and to improve my chance of an image I used my 70 to 200 f2.8, as it is easy to handle with a fast aperture that I set on f2.8. The down side is the level of cropping needed for a decent image.