The flock
A flurry – or kit – of Homing pigeons captured in mid-flight as they bank in a unified flock and each individual wing flap is synchronised to the next nearest bird’s beat.
*Shot on a Canon 600d 18mp dSLR using a Canon EF 70-210mm f/3.5-4.5 USM lens with settings at ISO-400, lens at f/4.5, metering mode set to spot and an exposure time of 1/4000 seconds*
Stretch the Horizon 
Nice and sharp to say how fast they fly!