We are setting up our duck pen using RedBrand field fence.however I am worried about them fitting through the wire so we are layering chicken wire at the bottom. My question is would 1 foot be adequate, or should I go with 2 foot? We are getting Silver Appleyards, so larger ducks. Once they are fully grown I don’t think we’ll necessarily need the chicken wire but I’m sure we’ll need it until then. But would they be able to jump over 1 foot and make it through the gaps in the field fence or would that be enough to keep them in?