Hi, new to the site. I have two duck hens, a Rouen and a Runner I hatched. Both almost two years old. I have an open pen, 5' high fence and then a completely closed in area which includes a completely closed in coop. A fox hopped the fence the other night while the ducks were still in the open pen. Our dog sits inside on a chair overlooking the duck pen keeping watch. She started going ballistic and I knew there was trouble. I looked out the window and a fox hopped the fence and was going after my ducks. By the time I got outside the fox looked like he was still chasing the ducks so I chased him back over the fence. He hopped over a 5' fence like it wasn't even there. I scooped up both ducks and put them in the enclosed area. They were both still running around frantic but didn't seem injured. I was in my PJs, barefoot (foot of snow on the ground) so I went back in the house threw on some boots and went back out. By this time the ducks were in their coop. I looked in on them with a flash light and they didn't seem injured. I looked for blood and didn't see any. Next morning I did find a handful of feathers from the Rouen which looked like about the size of a fox mouthful. Long feathers and short. Again, no blood. I can't even tell from where on the Rouens body they came from. Possibly tail feathers. I opened up the coop, they didn't come running down the ramp like they usually do so I had to coax them a little. Both ducks came down the ramp, physically looked ok, just maybe a little shell shocked. This was Sunday night. Ever since, the Runner is acting normal however, the Rouen who is usually very friendly and hungry ALL the time has not been eating much and basically hiding most of the time. I even bought some night crawlers from a local bait store knowing they LOVE worms. The Runner takes them as usual, but the Rouen seems to have trouble eating them. Normally she jumps right for them and inhales them...one right after another. Now she seems to have to force them down if at all. Very unusual for her. Should I be overly concerned?