Skully,
I laid out the panel flat, laid the black plastic on it and secured it with wire. Then spread out the hay from another round bale and then laid chicken wire on top and wired it down on the ends. Then I folded the ends towards each other until I got the round shape and tied the ends together with about 5 feet of wire.
The flat sides are hay sandwitched between chicken wire with holes cut for shooting. It is staked to the ground with really big tent stakes.
Hope this explains it clear enough......Caz