Two friends on motor bikes noticed a silent, low flying object flying over them - at first, they thought helicopter, and then they thought drone.
Thankfully one of the witnesses kindly submitted a description of the "craft" to TUS:
Returning from a Radio fund raiser in Austin with a friend, we were heading north bound on S mays approaching downtown Round Rock, when I noticed a glare coming from above me. I looked up, and saw, what first looked like a helicopter, but wasn't making much noise and was very low. I yelled to my friend Tina (we were on a motorcycle) to look up, she saw it too. I know I assumed it was a very low flying aircraft, but being only 50 or so feet off the ground, and making almost no noise, I started to suspect it to be a drone. Not sure why a Drone would be following me on my bike.
Since the description is a little vague, the sky is pretty wide open as to what this could have been. Have you seen anything that might resemble a drone in the Round Rock area? Report it!