Cooper's Hawk - Accipiter cooperii - Native to the North American continent, this raptor of the family Accipitridae is found from southern Canada to northern Mexico. As in many birds of prey, the female is the larger of the sexes
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.(I had a Cooper's Hawk on my NYC terrace February
Definitely not seed-eaters. They used to feast on baby bunnies at UVic (before the University got rid of the rabbits). Now, backyard bird enthusiasts may unwittingly be fattening songbirds for the Cooper's.