Thousands of starlings fly over marshes as they return to roost at dusk near Glastonbury in Somerset, south west England, January 14, 2015. The daily display at dawn and dusk during winter months, known as 'murmurations', is particularly spectacular in this part of the south west of England and on the England-Scotland border near Gretna. REUTERS/Toby Melville (BRITAIN - Tags: ANIMALS SOCIETY ENVIRONMENT TPX IMAGES OF THE DAY)