Had them a few years ago in Colorado and Nebraska areas, saw them in my rural area more than once, came in from the north flying in what appeared to be some sort of grid, several different nights and always at night. It was all over the local news and then everyone stopped talking about them. I
Assumed it was google mapping or something similar, no shadows or heat mirage to distort the photos at night. I’m betting that’s what is going on now but that doesn’t explain why they haven’t just came out and said that’s what it is.