A highway in Austin, Texas was swarmed with a huge flock of birds in massive murmurations on and above the highway on Monday (January 28).

The flock can be seen perched on the highway railing but as the traffic passes by, they take off a form a murmuration in flight.

The flock then spreads and fills the skies above all lanes of traffic on the road, creating incredible silhouettes against the sun.

The filmer told Newsflare: "I was in the car with my friend driving along the highway in traffic when suddenly huge flocks of birds started flying and landing on the edge of the highway.

"Cars had to move out of the lane because there were so many. It was really cool but kind of scary!"

I was in the car with my boyfriend driving along the highway in traffic, when suddenly huge flocks of birds started flying and landing on the edge of the highway; cars had to move out of the lane because there were so many. It was really cool but kind of scary!