Popular true bantam breeds include rosecombs, sebrights, silkies and d'Uccles. Some larger breeds of chickens have been bred to be smaller and are often called bantam as well.
The name bantam refers to a naturally small breed of chicken first seen in Indonesia. True bantams are those that are naturally small and do not represent any larger breed. There are several unique developed breeds, such as frizzles and pekins, that are also small in size like a true bantam. Many larger breeds, such as leghorns, Rhode Island reds, and anconas have been bred in smaller sizes, but do not fit the definition of a true bantam.