Nice but butted up against a forest, this should definitely be made out of 1/2" hardware cloth. Also, varments will dig under that so it needs an apron, ie. dig down 18" and put HWC or bend it outward at the bottom and bury it then cover with rocks. I'd hate to hear you lost ducks, as this just looks like a trap at this point.
This doesn't explain how you built it or a materials list with lengths of boards and posts, which would be extremely helpful.
This doesn't explain how you built it or a materials list with lengths of boards and posts, which would be extremely helpful.