Abstract: A segregator bucket comprises an open-fronted shell including a pair of opposed sidewalls and a rear wall, the rear wall including a plurality of curved, transversely spaced primary ribs defining spaces therebetween, a cage member being mounted in the shell between the opposed sidewalls thereof and comprising a plurality of curved, transversely spaced secondary ribs defining spaces therebetween, the cage member being rotatable relative to the shell about an axis extending transversely of the shell between a loading position in which the secondary ribs are received within, substantially to close, the spaces between the primary ribs and a discharge position in which the secondary ribs are displaced from, to open, the spaces between the primary ribs.