What's wrong with the pigeon does not take a bath

The pigeons do not take a bath because the birds will not wash themselves.Wash it once a week in spring and autumn, wash it once or twice a week in summer, and wash it once a month in winter.Prepare a water bathtub, which is full of water with a suitable temperature, so that it can take a bath by itself.If it does not wash it, you can grab it slowly and let it adapt.After washing, it should be dried in time and let it take the sun.