The Ducks

The Ducks are a group of at least four players, all with similar duck appearances, with varying colors of scarves. They're usually always seen together. The ducks state their intent is to spread the truth of Cluckism, or the Way of the Mighty Cluck. This is believed to be a religion that they all follow.

Rumors
It has been theorized that the ducks are somehow connected to The Rogue Goblin Brothers, likely due to the similarity in consistent names and appearances. Although some say they're an enemy to the goblins, they stated that they would work together if they converted to their faith.