The hawk flew off but The Ladies remained hidden until The Rooster could coax them out with some scratch; you wouldn't believe how well camouflaged The Ladies are when buried in the hedge. We're not sure what happened, but Ringo seems to have engaged the avian enemy. Whether the interaction was offensive or defensive we'll never know, but Ringo will carry a couple war wounds.
There seem to be no lasting injuries, just a bit of bloody/missing comb and some ruffled feathers. When returned to the coop, Ringo hid under the nesting box to recover more fully from the shock. Updates will be posted as information develops.