Like you say, the lack of sharpness is a bit of a pity, but for the rest this is a stunner! A slight crop on the bottom would do the composition a world of good! Now the birdies are a bit centered. Getting them in the left bottom corner and have a bit more space on top and you have a winner because of the minimalistic look. Great shot!!
Mary MacADNski: I could see this all the way down the road. I stopped the car, got the one shot and they took off. Good advise about the crop.