When will the red 靛颏 change the hair

Red 靛颏 generally starts to change hair after autumn.Red 靛颏 usually changes hair once a year, but it must be changed during the growth process, that is, from the stage of growing from young birds, with new feathers, it can fly.During the period of hair change, cleaning should be cleaned, there must be no dirt in the cage. Regularly improve the meals to supplement some nutritious feed.