Robb Manes called it “The Great Mattress Migration of 2019”. What resembled migration of a flock of animals was actually a group of air mattresses laid out in Denver for an outdoor movie night that got carried by the strong wind.
The Great Mattress Migration was an instant hit on the Internet when Manes uploaded his recording of the whole event. Don’t do outdoor events on nights where strong winds are prevalent!
image credit: screenshot via Twitter