Starlings perform their traditional dance before landing to sleep near the southern Israeli city of Rahat, in the Negev desert, on January 22, 2018. #

A murmuration of migrating starlings flies above a waste facility near the city of Rahat, Israel, on December 30, 2018. #

A flock of starlings flies near the first tee during the Golfplan Insurance PGA Pro-Captain Challenge at the Lumine Golf Club, near Tarragona, Spain. #

Black kites fly as a murmuration of starlings tumbles in the distance near Rahat, Israel, on February 10, 2016. #

Starlings land to sleep on a transmission tower near the southern Israeli city of Be'er Sheva on December 22, 2018. #

A black kite flies under a murmuration of migrating starlings at a landfill near the city of Be'er Sheva, Israel, on December 26, 2016. #

A murmuration of migrating starlings is seen across the sky near the village of Beit Kama, Israel, on January 16, 2018. #

Starlings swarm before landing to sleep near the southern Israeli city of Rahat on January 22, 2018. #

A murmuration of starlings, photographed near the southern Israeli city of Rahat on February 4, 2018 #

Starlings are photographed at their nesting box in a private garden in the town of Bobruisk, Belarus, on April 8, 2018. #

Migrating starlings fly in a group above a waste facility near the city of Rahat on December 31, 2018. #

A tightly packed murmuration of starlings is seen in the sky near Be'er Sheva, Israel, on December 28, 2015. #

A picture taken on January 22, 2018, shows starlings flocking together near Rahat. #

Starlings fly behind a statue in central Rome at sunset on November 16, 2018. #

A flock of starlings fills the sky over Rome, Italy, on January 29, 2018. #

A flock of starlings flies at sunset near Rahat, Israel, on February 2, 2015. #

Starlings put on a display near the M6 as they gather in murmurations on November 21, 2018, in Gretna, Scotland. #

A murmuration of starlings is seen across the sky near the Israeli village of Beit Kama on January 16, 2018. #

A sunset murmuration of starlings, as thousands of birds head to roost in Somerset Levels marshes, in England's Somerset county #

Migrating starlings fly in a group above a waste facility near the city of Rahat on January 1, 2019. #

Migrating starlings rest on a fence near the village of Beit Kama in southern Israel on January 16, 2018. #

A large flock of starlings flies near Sarospatak, Hungary, on October 18, 2018. #

Starlings wheel and fly before landing to sleep near the southern Israeli city of Rahat on January 4, 2016. #

Starlings fly near Be'er Sheva, Israel, on December 28, 2015. #

A murmuration of migrating starlings is seen across the sky in southern Israel on December 31, 2015. #