A Alpine Chough (the bird of these pictures) can fly on average 50 km per hour.
When it flies by a few meters away from your objective with wind on the tail (!), be sure to use > 1/3000 timings.
These are 3 (almost) not blurred pictures out of 20 I shot. Nevertheless, please appreciate (click on pictures to zoom) the visible black on black plumage on the flying bird. To avoid the “full black” crow body I used spot metering instead of the usual average metering.