ducks ate grape jelly

[cymbaline]

If you are using chicken wire there have been several reported cases of predators pulling them through the wire so that is definitely possible. Welded 1/2 inch wire is much safer and recommended for a predator proof pen.

You are absolutely right! Chicken wire only keeps birds in - it doesn't do much of anything to protect them from predators! I learned that the hard way last year...something actually ripped a hole in the wire and took one of my duckies.
I use the welded wire/hardware cloth now for their pen, and bring them in at night. When I do get a full size live-in run for them, it's gonna be 1" chain link fence, extended below the ground so animals can't dig under and get in, with solid wood along the first 2-3' from the ground. Maybe then I'll feel that they are safe outside. :\

 

[lazydaisy]

does make sense. might be worth a try.