No. She will not be OK. Drakes are .... (choosing my words so I don't get censored) .... well, they are like drunken pirates after a long stretch at sea. Only drakes are like that ALL the time. I would not put them with your chicken hens. If you plan to have a flock of ducks, my experience is that you need at least 5 duck hens for each drake.
Regarding predation, EVERYTHING thinks of Duck as a gourmet delicacy. Predators you didn't even know were around will come out of hiding to hunt your ducks. 10x worse than chicken predation. I had Welsh Harlequins and Cayugas, a mixed flock of about 20 birds to start. Even with electric bird fencing surrounding my chainlink run and secure coop and a bird netting top, I still lost every single duck within 2 years.
Regarding predation, EVERYTHING thinks of Duck as a gourmet delicacy. Predators you didn't even know were around will come out of hiding to hunt your ducks. 10x worse than chicken predation. I had Welsh Harlequins and Cayugas, a mixed flock of about 20 birds to start. Even with electric bird fencing surrounding my chainlink run and secure coop and a bird netting top, I still lost every single duck within 2 years.