Cooper's Hawks capture birds with their feet and kill them by repeated squeezing. They have even been known to drown their prey. Three Cooper's Hawks were found in Central Park in this year's Bird Count.
Cooper's hawk (Accipiter cooperii) ~ A crow-sized hawk (males can be smaller), blue-gray on the back & head, with horizontal orange barring on the breast & belly (mature). *Very* similar to sharp-shinned hawk. Extremely fast, agile flier through thick canopies, preys on small to medium birds & occasionally small mammals. Year-round in Arkansas.
Hummingbirds use hawks as their bodyguards. They often live under hawk nests to seek protection from jays, one of the biggest threats to their babies. Hawks like to stalk their prey from above, so jays avoid foraging below them, which creates a hummingbird safety zone. Source