When you keep your eye on the sky you never know exactly what you will see.

Facebooker Blake Hibberd in Colorado Springs couldn't help but notice the Colorado sky filling up with Blackhawk helicopters and captured this video.

It's not something you see just every day, but there's just something special about seeing military aircraft in the air. We don't know exactly what they were doing, but the Facebook discussion suggested the presence of the helicopters was training related.

We see some military training exercises near Grand Junction from time to time and occasionally we'll see a military jet fly over the valley. Who knows when we might see the western Colorado sky filled with Blackhawk helicopters.