City council members on Wednesday are expected to pass a bill that bans the sale of fattened liver of a duck or goose at restaurants, grocery stores or shops.

A majority of council members have signed on to the bill, which also has the support of animal welfare advocates and other critics who say producing it involved force-feeding a bird by sticking a tube down its throat.

But vendors say it could mean trouble for farms outside the city that are premier US producers of the French delicacy.

The bill would impose a $US1000 ($A1460) fine and up to one year behind bars on any restaurateur or grocery store owner who sells foie gras.

California banned the delicacy in 2012. It was challenged in federal court, but a federal appeals court eventually upheld the ban. Chicago banned foie gras in 2006, but the ordinance was repealed two years later.

Other animal-friendly bills are also expected to be approved at Wednesday’s meeting, including a bill prohibiting carriage horses from working in temperatures above 90 degrees and a ban on the sale, capture or possession of pigeons.

-AAP