flock

Pink footed geese take off to feed from Montrose Basin on November 5, 2014 in Montrose, Scotland. Staff and volunteers at the Scottish Wildlife Trust have recorded more than 78,000 geese arriving to spend the winter in the reserve, eclipsing a previous record, set in 2010, which saw 65,060 geese arrive at the nature reserve.

Jeff J Mitchell/Getty Images

Pink-footed geese take off to feed from Montrose Basin on Wednesday in Montrose, Scotland. Staff and volunteers at the Scottish Wildlife Trust have recorded more than 78,000 geese arriving to spend the winter in the reserve, eclipsing a previous record set in 2010

Indian shepherds escort their flock of goats on a street in Kolkata, India, Friday, Jan. 31, 2014. Kolkata is the capital of the western Indian state of West Bengal located on the banks of the Hooghly River.

Bikas Das/AP

Herders escort their goats through a street in Kolkata, India

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.