To produce "foie gras" (which literally means "fatty liver"), workers ram pipes down male ducks' or geese's throats two or three times daily and pump as much as 4 pounds of grain and fat into the animals' stomachs, causing their livers to bloat to up to 10 times their normal size.
Many birds have difficulty standing because of their engorged livers, and they may tear out their own feathers and cannibalize each other out of stress.
The birds are kept in tiny wire cages or packed into sheds. On some farms, a single worker may be expected to force-feed 500 birds three times each day. Because of this rush, animals are often treated roughly and left injured and suffering.
Download PETA's Leafet on Foie Gras Here