Hundreds of thousands of starlings were photographed dancing in unison above the fields in Gretna Green in Scotland, UK, on Tuesday. /VCG Photo

Flocks of birdwatchers and shutterbugs observed the rare sight in awe as the migrant birds performed a spectacular aerial show. /VCG Photo

Starlings are migrant birds that fly from northern and eastern Europe to the UK to escape the cold winter. /VCG Photo

They are commonly spotted a little before dusk in October and November. /VCG Photo