Types and selection of yellow birds

The yellow bird is generally divided into four types, namely yellow, green, Ma Gong, and red neck, of which Ma Gong is the best.Choose the length of the yellow bird first, from the tip of the mouth to the tip of the tail at least 12 cm.Secondly, it depends on the body, mainly check whether symmetry.Then look at the tail, it is best not to split.It also depends on the feathers on the head. The feathers must be clean, preferably numb.Finally, it depends on the feather color, and the color is pure.