I find kestrels to be almost impossible to photograph. 99x out of a hundred they fly long before I can set up to take a picture. Yesterday I was out with a friend photographing hawks. It was late in the day -- just about sunset -- when we saw this kestrel fly up to a wire with a mouse in its talons. My friend was driving and he pulled to a stop almost underneath the bird. The bird was plainly reluctant to fly and, perhaps, surrender its dinner and so, instead of flying it gobbled the entire mouse down, head first. I took these photos out of the passenger side window of the car, with a 5Diii and a 400DO. The ISO was 640, and it was set to 1/1000 at f6.3.
Thanks Steven, my findings exactly! It's particularly frustrating as I want to get a lot more of them than I have... Most of mine are static shots too, not bif... They are fast and super skittish! Thanks again!