Bystander captures locust swarms coating the skies of Saudi Arabia

A bystander in Al Khobar, Saudi Arabia, captured the moment when swarms of locusts coated the sky above him on Feb. 21. According to National Geographic, locusts are sometimes solitary insects with lifestyles much like grasshoppers. But they have a behavioral stage called the gregarious phase, where they can congregate into thick, mobile, ravenous swarms when environmental conditions produce many green plants and promote breeding.

Watch the rare congregation above.