Dark grey with a blackish helmet and a yellowing eyeing and cere: small bill strongly hooked. Underparts whitish with fine barrowing on the flanks.
Peregrine Falcons catch medium-sized birds in the air with swift, spectacular dives, called stoops. In cities they are masterful at catching pigeons. Elsewhere they feed especially on shorebirds and ducks. They often sit on high perches, waiting for the right opportunity to make their aerial assault.
The bird gets all the credit!