CROP CIRCLE

Each parasite race has their own signs and symbols. Each symbol sign represents who they are and how advanced their technology is. This is parasites warning of other parasites + any other ET this is there world/realm.ET Do not navigate circles themselves in their craft. Each sign and symbol is programmed in certain craft and craft to create circles using a form of microwave what bends crops neatly perfect at stem,
1-2 parasites to each craft used for crop circles. This is parasites flexing their muscles to unwanted races.
The more advanced their tech is more intimidating it is to other ET
Christian21