NEW YORK — Animal welfare activists picketing Liam Neeson’s home Saturday said they don’t agree with him that the city’s carriage horses should keep working.

Neeson didn’t appear as about 50 demonstrators filled the sidewalk in front of his apartment building on Manhattan’s Upper West Side. Police watched, and doormen photographed protesters hoisting signs with slogans such as “Liam Neeson: Stop Supporting Cruelty!” and “Worked to Death!” with an image of a dead horse in a park.

Holding the second sign was Peter Wood, an animal protection investigator for various organizations that say it’s cruel for the horses to be subjected to traffic, pollution and possible accidents.

“It’s 2014, not 1914. It’s time for a change,” said Wood, who lives in Manhattan.

“Horses don’t belong in traffic, surrounded by buses. They don’t belong in the city; it’s outdated, it’s cruel,” he said. “Life attached to a carriage with a poop bag attached to your rear end – that’s no life.”

Neeson, whose movies include “Schindler’s List,” “Taken” and “Non-Stop,” is a vocal supporter of the city’s carriage horses, which are kept in stables he toured recently with lawmakers. He says the horses are not being mistreated.