Ducks stand in a livestock farm in Bars, southwestern France, on December 5, 2017.
Authorities in south-west France began a cull of hundreds of thousands of ducks January 5 as authorities scramble to contain an outbreak of a virulent strain of bird flu sweeping Europe. The farm birds in France's foie gras heartland are to be slaughtered to stem the spread of an outbreak of the highly pathogenic H5N8 virus.
 / AFP / REMY GABALDA        (Photo credit should read REMY GABALDA/AFP/Getty Images)