What's wrong with the crow without taking a bath?

The way of the crow does not take a bath. The way is wrong.Usually prepare a sand table, wash and filter the collected sand, pour it into the sand table after drying, and then put the sand table in the bird cage. It can take a bath itself.Generally, you need to change the sand 2-3 times a week. If you find that you get dirty, you need to replace it immediately, and then you need to sieve, clean and dry it. You can put a little sulfur powder in the sand to prevent bird lice.