Types of yellow sparrows

There are four types of yellow birds, namely yellow, green, Ma Gong and red neck.Among them, Huang's is a Chinese product, which looks very good -looking, and the learning is faster, but the sound is not too loud.Qing's voice is louder than yellow, but it is not very tame, and it is slow to learn oral learning.Magong called a statement liang, learned quickly, and could be released.Red necks have red hair during the season, and have a certain ornamental value.