Birdwatchers observe as murmurations of wading birds fly along the coastline of The Wash near Snettisham in east Britain, February 12, 2016. REUTERS/UNI PHOTO
Birdwatchers observe as murmurations of wading birds fly along the coastline

Birdwatchers observe as murmurations of wading birds fly along the coastline of The Wash near Snettisham in east Britain, February 12, 2016. REUTERS/UNI PHOTO