Hard to tell the pitch of those pipes from just the pic. They could also be Dixie Horns.
Reading that, I immediately thought of my years growing up in the 1960s on New York City's Lower East Side and the Puerto Ricans there who used to decorate their cars with fox tails, fender skirts, and pom poms.
Below, some pics from past Puerto Rico Day parades, one of the few where you really have to struggle to find an American flag. You find lots of them in most other parades there. ie, Columbus Day/Italian, Greek parade, Israeli, St Paddy's Day, etc.
