starlings

Starlings in the Scottish Borders...Tens of thousands of starlings start their murmuration, with Criffel mountain in the background, as dusk falls near Gretna Green on the England and Scotland border. PRESS ASSOCIATION Photo. Picture date: Wednesday November 5, 2014. The reason for the beautiful spectacle is not definitively known, with theories ranging from a defence mechanism against predators to attracting more birds to join their roost. See PA story ENVIRONMENT Starlings. Photo credit should read: Owen Humphreys/PA Wire

Owen Humphreys/PA

Tens of thousands of starlings start their murmuration, with Criffel mountain in the background, as dusk falls near Gretna Green on the England and Scotland border. The reason for the beautiful spectacle is not definitively known, with theories ranging from a defense mechanism against predators to attracting more birds to join their roost. 

A flock of migrating starlings is seen a...A flock of migrating starlings is seen as they perform  their traditional dance fly before land to sleep during the sunset near the southern Israeli village of Tidhar in the northern Israeli Negev desert on February 11, 2014.

Menahem Kahana/AFP

A flock of migrating starlings is seen as they perform their traditional dance fly before land to sleep during the sunset near the southern Israeli village of Tidhar in the northern Israeli Negev desert. 

Starlings in the Scottish Borders

Owen Humphreys/PA Wire

A murmuration of starlings above the small village of Rigg, near Gretna, in the Scottish Borders on Tuesday

A murmuration of starlings fly close to power lines at sunset near Gretna on the Scottish borders.

Owen Humphreys/PA

A murmuration of starlings fly close to power lines at sunset near Gretna, Scotland.