When I was turkey hunting 5th season in So. Il my buddy and I found some kind of small floating tee-pee net things in a small feeder creek off his dads property. They were made out of PVC, pool floaty noodles and some REALLY fine nylon netting. They were attached to 4 ft rebars with zip ties so they could float up and down as the water level rose and dropped. No name tags, no permission to enter or to do such. Just kinda looked into them one day out of S&G's and they had nothing in them. Govt tracking us, AGAIN!!!!!!!!!!!