duck hawk

noun
1.
a peregrine falcon of the American subspecies Falco peregrinus anatum, noted for its especially swift flight.
Origin
1805-15, Americanism
Examples from the web for duck hawk
  • Other names for peregrine falcon include duck hawk, great-footed hawk, and wandering falcon.
  • The peregrine falcon, often referred to as the duck hawk, feeds primarily on birds.
  • Because of its habit of preying on waterfowl, the peregrine falcon has historically been referred to as the duck hawk.
British Dictionary definitions for duck hawk

duck hawk

noun
1.
a variety of peregrine falcon, Falco peregrinus anatum, occurring in North America