Oh I didn't know that its because I have a friend who has ducks and chickens and she said that this fence worked great for her so I should try it out and I did and it worked for me
I did a fence for my chickens it wasn't that pricey you could use 5ft or 6 tall T-Post from HompeDepot or Lowes and get 5ft or 6ft tall Chicken wire and connect it to the T posts here is what my fence looks like
Fence