Migrating starlings fly across the sky, in southern Israel December 28, 2015. (Photo by Amir Cohen/Reuters)





Migrating starlings fly across the sky, in southern Israel December 28, 2015. (Photo by Amir Cohen/Reuters)





Migrating starlings fly across the sky, in southern Israel December 28, 2015. (Photo by Amir Cohen/Reuters)





Migrating starlings fly in the sky near the Israeli southern city of Beer Sheva December 28, 2015. (Photo by Amir Cohen/Reuters)





Migrating starlings fly outside a Bedouin village in southern Israel December 28, 2015. (Photo by Amir Cohen/Reuters)





A Black Kite (C) is seen perched against a backdrop of migrating starlings in the sky near the Israeli southern city of Beer Sheva December 31, 2015. (Photo by Amir Cohen/Reuters)





A murmuration of migrating starlings is seen across the sky in southern Israel December 31, 2015. (Photo by Amir Cohen/Reuters)





A murmuration of migrating starlings is seen in the sky near the southern Israeli city of Beer Sheva December 31, 2015. (Photo by Amir Cohen/Reuters)





A man walks below a murmuration of migrating starlings in the sky near the southern Israeli city of Beer Sheva December 28, 2015. (Photo by Amir Cohen/Reuters)





A murmuration of migrating starlings is seen in the sky near the southern Israeli city of Beer Sheva December 28, 2015. (Photo by Amir Cohen/Reuters)





A murmuration of migrating starlings is seen across the sky near the southern Israeli town of Netivot December 31, 2015. (Photo by Amir Cohen/Reuters)





A murmuration of migrating starlings is seen in the sky over the Israeli southern city of Beer Sheva December 21, 2015. (Photo by Amir Cohen/Reuters)





A murmuration of migrating starlings is seen in the sky near the southern Israeli city of Beer Sheva December 28, 2015. (Photo by Amir Cohen/Reuters)





Migrating starlings fly in the sky near the industrial area of Ne'ot Hovav in southern Israel December 28, 2015. (Photo by Amir Cohen/Reuters)





A murmuration of migrating starlings is seen across the sky near the southern Israeli town of Netivot December 31, 2015. (Photo by Amir Cohen/Reuters)





A murmuration of migrating starlings is seen in the sky over the city of Beer Sheva in southern Israel December 30, 2015. (Photo by Amir Cohen/Reuters)





A murmuration of migrating starlings is seen in the sky over the city of Beer Sheva in southern Israel December 31, 2015. (Photo by Amir Cohen/Reuters)





A murmuration of migrating starlings is seen across the sky over the city of Beer Sheva at southern Israel December 28, 2015. (Photo by Amir Cohen/Reuters)





A dead migrating starling lies near a fence close to the southern Israeli city of Beer Sheva December 29, 2015. (Photo by Amir Cohen/Reuters)





A flock of starlings fly in formation near the Arab town of Rahat, southern Israel, 04 January 2015. (Photo by Abir Sultan/EPA)