What happened to my brother without taking a bath

My brother may not be washed without bathing.This bird is best to take a bath every day, and it can be washed once a week in winter.When washing, prepare a basin, put it in the water inside, and put it in the bird cage, and it will wash it itself.After washing, take out the pot and let the birds bask in the sun.Since this bird usually lives on the tree, you do n’t choose a sand bath, you can only wash with water.In addition, it should be noted that bathing must be carried out on sunny days.