Brave Dog Chases Coyotes & Mysterious Swirling Cloud

Owners of the Red Setter, Arizona's Riverside Retreat in Greer have encountered several curious coyotes at their own cabin. It starts to become dangerous when their dogs' chase after the pack, obviously outnumbered. This video footage captures the moment their dog Luke fearlessly runs with the pack, but they aren't so friendly.

Can you guess what this mesmerizing cloud in the sky is? It's an absolutely beautiful sight over Logroño, Spain.