A neighbor recently installed 8 of these, one very close to my house. There are 4 each in two of his fields where nothing but weeds grow. Four are placed about 50 to 75 ft apart in the corners of a square pattern that he mowed in the grass. He has been reluctant to tell me what they are. Round disk on top and bottom with chains between and what appears to be several wooden blocks on the bottom disk. Any ideas?
I know these are not Cub related, however I did discover them while flying the Cub over my place. I thought someone might be able to identify them.