How to choose the yellow bird

Physical length: Choose the yellow bird first depends on its body length. Generally, it takes more than 12 cm in length.Body: In addition to the length of the body, it depends on the shape of the bird's body. It is necessary to ensure that the left and right are symmetrical, and the neck should be long.Tail: The tail of the yellow sparrow is best long, and the tail shape is best upright. Do not choose a fork.Feather: The feathers should be clean, the best yellow bird is hemp.