While much attention has been focused on the plight of hens and cows in factory farms, ducks are often overlooked - though some 30 million of them are raised for their meat and eggs in the U.S. every year. An undercover investigation at a duck factory farm in California gave an unprecedented look at the way many of these birds are raised.
WARNING: Disturbing images
Conducted by the animal welfare group Mercy for Animals, the footage allegedly shows the inner workings of Reichardt Duck Farm in Petaluma, one of the country's largest duck facilities that houses over 200,000 birds. In the video, workers are seen burning the bills of ducklings with hot metal, while grown ducks are seen trapped in manure pits and left to die. Injured birds are killed by workers who wring their necks, while birds destined for meat production are killed by being dragged through an electrified water bath.