The family is a large family, small in size, handsome-looking, lively and good-natured, crisp and pleasant. In the traditional caged bird culture of the mainland, it is preferred. In particular, the four kings that are revered, namely Kuroko, Hongko, Shell, and Idea, are still passed down among birds.
The scientific name of "Kuroko" is Great. Because the tone of its tweet is "Zai Hey - Zai Zai Hey - Zai Zai Hehe" or "Zai Zi Hey Hey", people call him "Kuroko".
The scientific name of "Hongzi" is swamp. When the call is called, there are many 'red' sounds, and it is called "red" by bird owners.
The scientific name of "shell" is coal. Because of a special black-white-brown marking, like the markings on a shell, it is called "shell".
The scientific name of "Pip" is yellow-bellied. It is the most beautiful of the four heavenly kings and is a unique bird on the mainland. It is also called "pip" because of the homonym of "pip" in its tweet, or because of the delicate wings and flower idea on its back.