What cage is good for yellow bird?

The yellow sparrow is best to insert a cage with a high outer cage.The length of this bird is about 10-12 cm. The top of the male bird is black, yellow-green on the upper body, and the female's head has gray-green spotted patterns. The upper body is red green, and the lower body is dark yellow.It usually lives in mountains, hills, and plain areas. The reproduction period will be paired. Other time, especially when migrating in spring and autumn, it often integrates the phenomenon of large groups.