I'm curious about something. Has a reproduction of a crop circle ever been documented?
Definitely yes.
Especially at night?
The people claiming to be behind many of them showed how they did them and the technique should have no trouble working just as well without much light as they didn´t rely on visual assistance.
I'd just like to see a person make an elaborate crop circle from start to finish.
Search youtube, there should be several vids there.
Beyond that, the subject is usually inundated by aliens this and aliens that.
Which is silly. There´s also been some serious research and IIRC the best theory how it can happen without "assistance" is that local magnetic fields can sometimes behave abnormally, and if it happens the same time as the right atmospheric conditions ( which helps causing electric charges), circles you get. Replicated successfully in lab(making it happen out in the field is unrealistic as the right conditions can´t be predicted ).