It's nearly 2am and I'm having trouble sleeping. I hear a helicopter fly over our house, which isn't unusual there's been a lot of search helicopters around the neighborhood here lately. But usually, you can see floodlights. There were no floodlights this time. I get my mom (I still live with my parents), and from the backyard, we spot these white UFO lights moving quickly across the sky. They're a bit above the trees and rooftops. This UFO Sighting was arranged in a square, one on each corner, flying in unison. The helicopter was following these UFOs in wide loops. It got fairly close to the aircraft it looked like. The white UFO orbs try to head further south, but the helicopter meets it there. And both aircraft, in their wide circles, migrate a little further east. About 20 minutes later, I'm too afraid to keep watching, and I don't even think of taking a picture (I have anxiety). My mom has no clue what it is either, and she heads in. It's been over 50 minutes now, and I still hear the helicopter further north, and a bit further away. I needed to report it, so here I am. A bit frightened. As of writing this, it's come back near my house. Not sure I can bring myself to go back out. mufon cms# 86312 UFO Sighting occurred over Clovis CA U.S. on August 28th 2017.