transitive. = To stoop at or on. ? Obsolete.

Of a hawk or other bird of prey: To descend swiftly on its prey, to swoop (const. at, on); also, to descend to the lure. Also figurative.

intransitive. Of a bird: To swoop at. Also transitive. To take (something) with a swoop.

transitive. To pursue or attack on the wing, as a hawk does; to prey upon while flying.