A cheep slut has come between a hawk and her hubby. For the last five years, two red-tailed hawks named Christo and Dora have ruled the roost at Tompkins Square Park, mating and raising 10 chicks together. But three months ago, Dora had to leave and go to rehab for an injured wing. And while hawks usually mate for life, an opportunistic bachelorette named Nora soon arrived and began flapping her feathers at Christo.